U.S. President Barack Obama and Canadian Prime Minister Justin Trudeau jointly ban offshore oil drilling in the Arctic Ocean and parts of the Atlantic coast.
US President Barack Obama says the United States has "increasing confidence" that the missile that shot down Malaysia Airlines Flight 17 came from Russian separatists in Ukraine - and that Russia bears responsibility for the crisis.
A United States government source reveals that Barack Obama signed a secret order in early 2012 permitting the CIA and other U.S. agencies to provide the rebels in Syria with support in order to overthrow the al-Assad regime.
President of the United States Barack Obama announces in a special TV broadcast that Osama bin Laden, the founder and leader of the militant Islamist group Al-Qaeda and the most-wanted fugitive on the FBI's Ten Most Wanted Fugitives, was killed on May 2 (Pakistan Standard Time) during an American military operation in Abbottabad, near Islamabad, Pakistan and that his body is in U.S. custody.
President of the United States Barack Obama opening the biggest international meeting hosted by the US since 1945, greets leaders from nearly 50 countries. World leaders at the summit hear dire warnings of the danger of nuclear material falling into the wrong hands.
US President Barack Obama will propose a $3.8 trillion budget for fiscal 2011 that foresees the deficit hitting a record $1.6 trillion in the current fiscal year but falling to about $700 billion by 2013.