The American troops in Iraq daily face the risk of death or injury--to themselves or their fellow soldiers--by homemade bombs and suicide attackers. So it is not surprising that post-traumatic stress disorder is a common problem among returning soldiers. But how many, exactly, are affected?

This question is key to determining how large an investment the Department of Veterans Affairs needs to make in diagnosing and treating the problem. The United States Army’s Mental Health Advisory Team, which conducted a survey of more than 1,000 soldiers and marines in September 2006, found that 17 percent suffered from P.T.S.D. Similarly, a Rand study put the number at 14 percent.

But these estimates do not take into account the many soldiers who will eventually suffer from P.T.S.D., because there is a lag between the time someone experiences trauma and the time he or she reports symptoms of post-traumatic stress. This can range from days to many years, and it is typically much longer while people are still in the military.

To get a better estimate of the rate of P.T.S.D. among Iraq war veterans, two graduate students, Michael Atkinson and Adam Guetz, and I constructed a mathematical model in which soldiers incur a random amount of stress during each month of deployment (based on monthly American casualty data), develop P.T.S.D. if their cumulative stress exceeds a certain threshold, and also develop symptoms of the disorder after an additional amount of time. We found that about 35 percent of soldiers and marines who deploy to Iraq will ultimately suffer from P.T.S.D. — about 300,000 people, with 20,000 new sufferers for each year the war lasts.

Consider that only 22 percent of recent veterans who may be at risk for P.T.S.D. (based on their answers to screening questions) were referred for a mental health evaluation. Less than 40 percent of service members who get a diagnosis of P.T.S.D. receive mental health services, and only slightly more than half of recent veterans who receive treatment get adequate care. Those who seek follow-up treatment run into delays of up to 90 days, which suggests there is a serious shortage of mental health professionals available to help them.

Proper P.T.S.D. care can lead to complete remission in 30 percent to 50 percent of cases, studies show. Thorough screening of every soldier upon departure from the military, immediately followed by three to six months of treatment for those who need it, would reduce the stigma that is attached to current mental health referrals. The Rand study estimates that treatment would pay for itself within two years, largely by reducing the loss of productivity. This is the least we can do for our veterans.

Bush gave democracy promotion a bad name, Larry Diamond writes in Newsweek. The new administration needs to get it right.

President-elect Barack Obama will inherit an Iraq that has experienced substantial improvements in security, but remains rife with unresolved internal issues. If not handled carefully, Iraq's fragile progress could dissolve and the country could become a dangerous foreign policy minefield for yet another American president. Here are the top 10 issues the next administration must address:

1. Determination of Objectives: The Bush administration invested vast resources in the hopes of achieving maximalist aims in Iraq. Though the results in Iraq have clearly fallen short of those aims, the Obama administration needs to formulate a policy that is more comprehensive and nuanced than "end this war." What can the U.S. realistically achieve? What are the outcomes that the U.S. can or cannot live with? How does Iraq fit in to a cogent strategy for the broader region, including Afghanistan, Pakistan, and Iran?
2. Approach to Withdrawal: The Status of Forces Agreement moving forward between the U.S. and Iraqi governments, combined with the urgent need for reinforcements in Afghanistan, will shape the contours of withdrawal. But what if Baghdad wants to change the schedule? Will changing conditions on the ground affect the pace and process of withdrawal? Is Washington willing to extend or accelerate the current "time horizon" if the security situation significantly deteriorates?
3. Management of the Security Transition: Earlier attempts to transfer security responsibility to Iraqi forces in 2006 encountered many problems. Do current assessments of when provinces will be ready for transition accurately reflect conditions on the ground? Can the U.S. effectively "thin out" its forces, while maintaining robust enabling capabilities (intelligence, air support, medical evacuation) in critical areas?
4. Development of the Iraqi Security Forces (ISF): America must help the Iraqi forces foster competence and professionalism and prevent the reemergence of sectarianism in the ranks. To make this happen, U.S. military advisors will likely be needed for years to come, particularly to help develop support capabilities that the Iraqis currently lack. Is this advisory effort effective as currently organized and prepared? How will advisors be allocated to meet growing demands in Afghanistan as well as Iraq? Can the Defense Department accelerate its Foreign Military Sales program to provide the ISF with badly-needed equipment?
5. Sunni Reintegration: The Sunni Awakening and Sons of Iraq groups are facing an uncertain future as they transition from American control to Iraqi payroll and command structures. How can the U.S. help ensure that Sunnis are reintegrated into Iraqi society so they have a stake in the political system and do not return to the insurgency?
6. Status of Kirkuk: Kirkuk, the oil-rich city of northern Iraq claimed by both Kurds and Arabs, will be a flashpoint for continued conflict. What role can the U.S. play to minimize the potential for re-escalation of Arab-Kurd violence over Kirkuk? Should U.S. policy emphasize indefinite postponement of this issue, broker a territorial compromise, or encourage Iraqis to "give" the city to one side and focus instead on sharing oil revenues?
7. Dealing with Iranian influence: As Iraq's neighbor, Iran has a natural interest in influencing Iraq's domestic affairs. However, Tehran's political obstructionism and support for militants ultimately undermines Iraqi as well as American interests. How much and what types of Iranian influence in Iraqi affairs can the U.S. tolerate? How can the U.S. help Iraqis counter the most destabilizing and pernicious Iranian influences?
8. Future of Political Relations with Iraq: How does the U.S. envision its relations with an emerging sovereign Iraq that is likely to exhibit erratic behavior on the international stage? How and to what extent should America insert itself in Iraqi politics? Should the U.S. government actively seek a balance of power between Iraq's major factions, so as to spread the risk and avoid linking itself to the fortunes of any one group? Or should it remain on the sidelines, so as to extricate ourselves as best we can?
9. Economic Development: Iraq's economy is currently 90 percent dependent on oil exports, resulting in substantial volatility in revenue. How can the U.S. help Iraq diversify its economic base? How can the U.S. encourage greater foreign investment in the Iraqi economy beyond the energy sector? What incentives could Baghdad provide provincial and local officials to improve transparency and revenue sharing mechanisms?
10. Return of Refugees: Huge numbers of Iraqis fled to Jordan and Syria to escape sectarian violence. Does Baghdad owe those nations financial aid? As refugees return, what is the best way to handle this influx? Is America committed to reestablishing the mixed-sect districts that existed prior to 2006? Is a level of sectarian separation necessary to keep the peace?

No panacea exists for Iraq's remaining ills, and no amount of planning will account for all of its complex and sometimes contradictory dynamics. But with America's direct influence likely to wane as its troop presence diminishes, it is increasingly important to anticipate the full spectrum of difficult issues and choices ahead, in order to devise the best way forward for the United States and Iraq.

Brian M. Burton is a research assistant at the Center for a New American Security and a graduate student at the Georgetown University Security Studies Program. John Paul Schnapper-Casteras is a predoctoral fellow at Stanford University's Center for International Security and Cooperation.

David Straub, the acting director of Korean Studies Program, argues that Obama administration will finally give diplomacy a chance to deal with the North Korean nuclear problem. He stresses that Senator Obama understands the difficulties of dealing with North Korea and will proceed carefully. If North Korea does not respond to this more nuanced American approach, he concludes, the international community is likely to be more supportive of U.S. efforts to constrain North Korean behavior.

Among conservatives in Korea and other American allied countries, there seems to be some anxiety about the election of a relatively unknown, young African-American liberal as the next American president. Typically, when a new U.S. president is elected, American diplomats seek to reassure allies by telling them that the incoming president will pursue fundamentally the same policies as the outgoing president. However, President Obama clearly will adopt a significantly different foreign policy than President Bush, including toward North Korea.

Obama’s soaring rhetoric has led to a widespread (and correct) impression of him as idealistic, but the long presidential campaign also revealed him to be a disciplined politician and a skillful manager. His foreign policy will be much closer to the prudent realpolitik of President Bush’s father than it will be to the “neo-con” approach of President Bush himself.
And while it is true that Obama does not have deep experience in foreign affairs, his youthful years spent in Indonesia and Hawaii, taken together with his successful navigation of American society as a young African-American man, have given him a genuine empathy for different peoples and cultures. He has the self-confidence and intelligence to listen with an open mind to others and then carefully to make his own decisions.

President Obama’s policy toward North Korea will defy stereotypes of the past. In some ways he will be “softer” on North Korea than President Bush; in other ways, he will be “tougher.”  Like President Bush and his predecessors, President Obama will take the position that he can never accept a North Korea with nuclear weapons. On the other hand, Obama will not engage in bluster such as “all options are on the table,” which most South Koreans reject and which only plays into the DPRK’s hands.

Instead, Obama will finally give diplomacy a fighting chance. Even during the past couple of years, President Bush remained very reluctant to engage fully in negotiations with North Korea. President Obama will order that a policy review be conducted expeditiously, and he will probably appoint a very senior special envoy to take charge of negotiations with North Korea. While maintaining the framework of the Six-Party Talks and consulting very closely with the Republic of Korea and Japan, he will also authorize meaningful bilateral negotiations with North Korea. If those negotiations bear real fruit, he may even visit Pyongyang himself if he is confident that he will be able to strike a deal completely ending North Korea’s nuclear ambitions.

President Obama will probably offer North Korea a “more for more” deal. In other words, compared to President Bush he will propose a much more detailed and concrete series of steps to be taken by North Korea, the United States, and other members of the Six-Party Talks. The aim will be agreement on an early end to North Korea’s nuclear weapons programs.

The North Koreans should not think that President Obama will be “easier” than President Bush. If, as may well be the case, the North Koreans reject President Obama’s approach or drag their feet in responding to it, he, unlike President Bush, will have the international credibility to work more effectively with other members of the Six-Party Talks and the international community to limit North Korea’s options.

Moreover, as a hardheaded domestic politician, President Obama will be careful to avoid situations in which the Republican opposition could credibly criticize him as being naïve about North Korea. Indeed, Obama’s team recognizes clearly that, having declared itself a nuclear weapons state and tested a nuclear device, North Korea may not be prepared to verifiably give up its nuclear weapons ambitions.

In formulating and conducting his policy toward North Korea, President Obama will have access to many trusted experts on North Korea, beginning with Vice President Biden and his staff. Obama is also advised by a number of experienced officials from the Clinton administration, from former Defense Secretary Bill Perry to former career diplomat Jeffrey Bader.

U.S. relations with the Republic of Korea are key to any successful American policy toward North Korea. Obama and his team fully appreciate the importance of U.S.-ROK relations and the security alliance. They will coordinate very closely with the Lee Myung-bak administration and never sacrifice the interests of the Republic of Korea, which is immeasurably more important to the United States than the DPRK is or ever will be.
 
President Obama will support the implementation of the agreements President Bush reached with the Republic of Korea on the realignment of U.S. Forces of Korea and the transfer of wartime operational control, as befits the ROK’s military and economic might.
 
Under President Obama, the United States will also aim to approve, with some adjustments, the U.S.-ROK Free Trade Agreement, although it may take a year or so to do so as he perforce deals first with the global financial and economic crises and wars in Iraq and Afghanistan.  President Obama must be cognizant of the viewpoint of leading congressional Democrats and the constituencies they represent. It may be counterproductive if the ROK pushes too hard, too fast for U.S. approval of the FTA.
 
Obama’s inauguration will also open up new possibilities for U.S.-ROK coordination and cooperation on global issues. Unlike President Bush, whose early unilateralist mindset and specific policies caused dismay among international friends and foes alike, President Obama begins with a vast reservoir of sympathy and respect throughout the world. That will make it easier, and more useful, for the Republic of Korea to cooperate globally more with the United States.
 
In short, South Koreans should be reassured, not that President Obama’s foreign policy will be like that of President Bush, but that it will be different. Perhaps South Koreans will even begin to feel that their alliance with the United States is not just one that they feel they must have for their country’s long-term interests – but also one of which they can feel proud.

Although Iraq dominates the headlines, the situation in Afghanistan may be more decisive to longterm international security, said Sarah Chayes, who has lived in the country since 2001 after covering the last stand of the Taliban for National Public Radio (NPR).

Chayes, an American who directs Arghand, a cooperative in Kandahar that produces soap from local plants and fruits as an alternative to opium production, spent Wednesday, Nov. 5, at Stanford. During several talks with CISAC faculty, staff, students and donors she discussed regional security, the future of democracy in Afghanistan and the stresses of everyday life in the ancient city of Kandahar, where she lives and where civilians must carry firearms to protect themselves. 

Chayes strongly criticized efforts to negotiate with the Taliban, which has fought a protracted guerilla war against the Afghan government since 2004. The extremist movement ruled the country from 1996 to 2001, when the Northern Alliance and NATO forces removed its leaders from power. "There is no intrinsic support from the population for the Taliban," Chayes said. "The Taliban want all, they understand they won't get all so they are trying to get what they can. Negotiating with the Taliban [offers] zero benefit."

Instead, according to Chayes, Afghanistan needs to experience the "real substance of democracy," not simply elections. It also needs a surge of non-military volunteers trained to mentor leaders working in civil society. "Thirty years of combat undoes a lot of structure" in society, she said. "People get things done as fast as possible because they might be shot in the next 50 seconds."

Chayes is the author of The Punishment of Virtue: Inside Afghanistan after the Taliban. In 2006, she was awarded The Bulletin of the Atomic Scientists' inaugural Ruth Adams Award for her work explaining the impact of U.S. policy on Afghanistan after 9/11. The prize recognizes journalists who translate complex issues of peace and security into everyday language and images. Chayes left NPR in 2002 to help rebuild Afghanistan. Initially, she served as field director for Afghans for Civil Society, a non-profit founded by the brother of Afghan President Hamid Karzai. She founded Arghand in May 2005.