TIMELINE-Messages attributed to al Qaeda

(Reuters) - Al Qaeda leader Osama bin Laden has urged European countries to end military participation with U.S. forces in Afghanistan, Al Jazeera television said on Thursday.

Following is a chronology of major statements attributed to Osama bin Laden or his allies this year. Some 50 messages have been broadcast since Al Jazeera aired a statement by bin Laden following the September 11, 2001, attacks on the United States.

Jan 22 - Second-in-command Ayman al-Zawahri mocks President George W. Bush's plan to send more troops to Iraq.

Feb 13 - Zawahri says Bush's troop build-up in Iraq is a gamble bound to fail. He vows reprisals against Arab and Muslim countries supporting U.S.-led wars in Iraq and Afghanistan.

March 11 - Zawahri says the leadership of Islamist group Hamas has surrendered to the Jews most of Palestine to keep heading the Palestinian government.

May 23 - Zawahri eulogises Taliban leader Mullah Dadullah, killed in Afghanistan earlier in the month and urges his followers to pursue his fight against U.S.-led forces.

June 25 - Zawahri urges all Muslims to support Hamas in its battles with President Mahmoud Abbas and Israel.

July 4 - Zawahri talks about unity in jihad and calls for the overthrow of "corrupt" Muslim governments in a new video.

July 10 - Zawahri threatens more attacks on Britain two weeks after failed bombings in London and Glasgow.