After meeting with allies, the president said he found conviction that it was the responsibility of the international community to "degrade and ultimately destroy" the militant Sunni group.
One of Europe's biggest jazz stars, pianist Stefano Bollani is also a TV personality, a published author and, his friends attest, a skilled impressionist.
The United States launched airstrikes in Somalia on Monday targeting Ahmed Abdi Godane, a co-founder of the al-Qaida affiliate in Somalia.
Coming in below expectations, the U.S. economy added 142,000 jobs in August. Still, the survey from the Bureau of Labor Statistics showed the unemployment rate dipped a tenth of a percent.
Secretary of State John Kerry said the coalition will support U.S. allies on the ground and continue to use airstrikes on militants. Kerry ruled out any "boots on the ground."
Ukrainian President Petro Poroshenko said he and a rebel leader had agreed to a cease-fire, which is part of Russian President Vladimir Putin's seven-point plan toward peace.
The U.N. official in charge of coordinating the removal of Syria's chemical stockpile said they found discrepancies in the country's accounting of its arsenal.