A truck bomb in a Baghdad market kills at least 135 and wounds more than 335 in the deadliest single attack since the invasion.

Secretary of State Condoleezza Rice announces the Iraq Refugee and Internationally Displaced Task Force to address the crisis. Paula J. Dobriansky, undersecretary of state for democracy and global affairs, describes plans to "process expeditiously" 7,000 Iraqis for resettlement to the United States.

April 17, 2007

At an international conference in Geneva, Sauerbrey says the United States could resettle 25,000 Iraqis by the end of the fiscal year in September.

June 19, 2007

Sens. Edward M. Kennedy, a Democrat of Massachusetts, and Gordon Smith, a Republican of Oregon, introduce legislation to require in-country processing for refugees and expand the number of special immigrant visas available to Iraqi employees of the U.S. military, government, contractors and media.

Summer 2007

Syria denies visas to Homeland Security officials seeking to interview candidates for resettlement to the United States.

July 7, 2007

In a cable to Rice, Ryan Crocker, the U.S. ambassador to Iraq, says nine embassy employees have been killed and asks that all Iraqi staff be granted special immigrant visas to the United States.

July 18, 2007

Civilian deaths surpass an average of 100 per day, the United Nations Assistance Mission for Iraq reports.

Sept. 7, 2007

Crocker sends another cable saying the resettlement process is too slow and Syria and Jordan need help.

Sept. 12, 2007

Campaigning in Iowa, Sen. Barack Obama calls the displacement "a threat to the security of the Middle East and to our common humanity" and pledges at least $2 billion to support refugees and internally displaced Iraqis, but does not mention resettlements.

Sept. 30, 2007

At the end of the fiscal year, the United States has admitted 1,608 Iraqis. Ambassador James B. Foley and Department of Homeland Security official Lori Scialabba are appointed to coordinate Iraqi refugee issues; they will announce plans to admit 12,000 Iraqis by the end of September 2008.

October 2007

Syria closes its borders to most Iraqis.