Many countries have said they support a coalition the United States hopes to build to fight Islamic State militants in Iraq and Syria, but most have been vague about any specific role they might play.
Below is a list of some of the key countries that may take part in the anti-IS coalition and where they stand.
France has signaled it will carry out air strikes in Iraq. It is providing arms to the Kurds and will send special forces to the country to help direct air strikes and train armed forces.
France has cited legal and military difficulties in intervening in Syria and said it does not want strikes against IS targets there to benefit Syrian President Bashar al-Assad.
France’s forces are also stretched, with more than 5,000 troops in West Africa. Its annual overseas defense budget is already almost triple what was originally planned at a time when the government is under severe pressure to cut spending.