Chronology of some key events since the Sept. 11 attacks (all times Eastern):

-- Sept. 12: Bush labels attacks "acts of war," asks Congress to devote $20 billion to recovery, allies to join war on terrorism. NATO declares terrorism an attack on all 19 member states. The FBI says that it has identified most of the hijackers. Firefighters continue to douse flames in New York and Washington, as "missing" posters begin to appear across New York City.

-- Sept. 13: Secretary of State Colin Powell identifies bin Laden as prime suspect. Limited commercial flights resume. National Football League, major-league baseball call off weekend games.

-- Sept. 14: Justice Department names 19 suspects in attacks; intelligence sources link them directly to bin Laden. Bush gives military authority to call up 50,000 reservists. Afghanistan's ruling Taliban warns of revenge if United States attacks. Bush leads nation in prayer at National Cathedral.

-- Sept. 15: Pakistan agrees to U.S. demands for possible attack on neighboring Afghanistan. Bush orders U.S. troops to get ready for war, saying "Those who make war against the United States have chosen their own destruction." Continental Airlines lays off 12,000 employees and cut its flight schedule by 20 percent because of an expected drop in air travel.

-- Sept. 16: Bush pledges "crusade" to "rid the world of evil-doers."

-- Sept. 17: Wall Street trading resumes, ending stock market's longest shutdown since the Depression. Dow loses 684.81 points, its worst-ever one-day point drop.

-- Sept. 18: Taliban leaders call on Muslims to wage holy war on United States if it attacks. President Bush leads nation in moment of silence at 8:48 a.m. EDT to mark the beginning of the attacks one week earlier.

-- Sept. 19: Pentagon orders combat aircraft to Persian Gulf bases. American and United airlines announce 40,000 layoffs.

-- Sept. 20: Bush announces new cabinet-level Office of Homeland Security, to be led by Pennsylvania Gov. Tom Ridge.

-- Sept. 24: Bush orders U.S. financial institutions to freeze assets of 27 groups and individuals suspected of supporting terrorists.

-- Sept. 25: Saudi Arabia cuts ties with Taliban government.

-- Sept. 27: Bush announces plan to bolster airline security, including expanded use of federal marshals on airliners.

-- Sept. 28: U.N. Security Council approves U.S.-sponsored resolution demanding all nations take sweeping action against terrorism.

-- Oct. 4: Reagan National Airport in DC reopened for the first time since Sept. 11.

-- Oct. 5: Tabloid photo editor Robert Stevens dies of anthrax in Florida, in nation's first known case of inhalation version of disease since 1976; a total of five people eventually die from anthrax infections. Army dispatches 1,000 soldiers to Uzbekistan, which borders Afghanistan.

-- Oct. 7: First airstrikes launched in Afghanistan; targets include capital of Kabul, bin Laden training camps and Taliban bases. Bin Laden, in videotaped message, praises God for Sept. 11 attacks and swears America will never "dream of security" until "the infidels' armies leave the land of Muhammad."

-- Oct. 10: Air Force sergeant killed in heavy-equipment accident in northern Arabian peninsula, becoming first death in campaign.

-- Oct. 11: U.S. troops, aircraft deployed in Pakistan despite Islamic protests.

-- Oct. 14: Bush rejects Taliban offer to discuss turning over bin Laden if U.S. ends bombing in Afghanistan.

-- Oct. 15: Officials announce anthrax spores found in letter to Senate Majority Leader Tom Daschle.

-- Oct. 16: United States, Pakistan announce support for multi-ethnic, democratically elected government in Afghanistan.

-- Oct. 26: Bush signs anti-terrorism bill giving police unprecedented ability to search, seize, detain and eavesdrop in pursuit of possible terrorists. Officials announce discovery of trace anthrax at State Department and CIA buildings.

-- Oct. 28: Thousands of relatives of World Trade Center victims gather at site for first official memorial.

-- Oct. 29: Bush announces terrorist-tracking task force to keep foreigners who are planning attacks from entering America.

-- Oct. 31: American Red Cross stops accepting donations to terrorism victims fund after raising more than a half-billion dollars.

-- Nov. 7: Federal agents raid U.S. businesses suspected of helping funnel millions of dollars to bin Laden's network. Bush asks at least nine countries to freeze assets that aid bin Laden and Al Qaeda.

-- Nov. 9: Taliban abandon strategic northern Afghan city of Mazar-e-Sharif, allowing Northern Alliance to take control.

-- Nov. 13: Northern Alliance troops enter Kabul after flight of Taliban forces that had ousted them in 1996.

-- Nov. 19: Bush signs law to hire 28,000 federal workers to screen passengers and baggage at major airports.

-- Nov. 25: First wave of Marines lands near Taliban stronghold of Kandahar. CIA officer Johnny Spann killed by rioting prisoners at Mazar-e-Sharif, in first death of American in action in Afghanistan.

-- Dec. 1: Northern Alliance forces turn over to U.S. custody John Walker Lindh, American who fought with the Taliban.

-- Dec. 5: Three American soldiers killed by "smart" bomb dropped by B-52 near Kandahar.

-- Dec. 7: Taliban forces begin surrendering in Kandahar.

-- Dec. 10: Marines move back to American embassy in Kabul after 12-year absence.

-- Dec. 11: First criminal charges in Sept. 11 attacks brought against Zacarias Moussaoui.

-- Dec. 15: Last piece of trade center facade pulled down.

-- Dec. 22: British citizen Richard Reid allegedly tries to blow up Miami-bound jet using bomb hidden in shoe. Karzai and his transitional government sworn in.

-- Dec. 28: Bush signals bin Laden may never be caught, saying "Our objective is more than bin Laden."

2002

-- Jan. 4: U.S. military loses first member to hostile action when Army Special Forces sergeant killed near Khost, Afghanistan.

-- Jan. 9: Seven Marines killed when tanker plane crashes into mountain in Pakistan.

-- Feb. 13: Lindh pleads innocent to a 10-count federal indictment charging him with aiding bin Laden's terrorist network.

-- Feb. 17: Federal government assumes control of security checkpoints at nation's 429 commercial airports.

--March 18: U.S. commanders declare end of Operation Anaconda, the largest U.S.-led ground operation in Afghan campaign, but many Taliban and Al Qaeda fighters slip through dragnet and seek refuge in Pakistan.

-- May 28: Last standing steel beam from trade center cut down during ceremony for ground zero workers.

-- June 19: Loya Jirga, Afghanistan's Grand Council, completes work on new government.

-- July 1: U.S. air raid in Uruzgan province kills 46 civilians, including 25 at a wedding party, according to Afghan government. U.S. military says forces came under anti-aircraft fire and acknowledges civilian casualties.

-- July 15: Lindh pleads guilty to supplying services to Taliban and carrying explosives during commission of a felony and agrees to cooperate with terrorism investigations.

-- July 15: Ceremony ends 10 months of sifting through trade center ruins.

-- Aug. 15: More than 600 family members of Sept. 11 victims file trillion-dollar federal lawsuit against Saudi officials and institutions.

-- Aug. 17: Moussaoui trial delayed until Jan. 6, 2003.

The Associated Press contributed to this report.