TIMELINE: Messages attributed to al Qaeda

(Reuters) - Al Qaeda leader Osama bin Laden accused Washington of plotting to take control of Iraq's oil and urged Iraqis to reject efforts to rebuild a U.S.-backed national unity government in an Internet posting on Saturday.

Following is a chronology of some statements attributed to bin Laden or his allies in 2007. 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 a U.S. troop build-up in Iraq will fail and vows reprisals against Arab and Muslim states backing 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 eulogizes 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.

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