Western nations must take military action against Islamic State militants because they pose a global threat, not just because of the murder of Western hostages, NATO chief Anders Fogh Rasmussen said on Monday.
British Prime Minister David Cameron is not ruling out military action against Islamic State militants in Syria, a spokesman said on Thursday, after Foreign Secretary Philip Hammond said Britain would not join any US air strikes in Syria.
French President Francois Hollande Wednesday said his country has been considering a military operation "if necessary" to quell the Islamic State (IS) militants and recalled the need to seek a diplomatic alternative to secure the stability in the region.
Russian Foreign Minister Sergei Lavrov on Wednesday accused the West of pushing Ukraine into a "fratricidal war" and repeated Moscow`s calls for an end to the interim Ukrainian government`s military action against pro-Russian separatists.
The US has no plans yet to launch a military action in Nigeria, where Islamist extremist group Boko Haram recently abducted nearly 300 girls, and is only contemplating military assistance to help find them.