U.N. : These forces -- including al Qaeda in the Islamic Maghreb -- began advancing toward Bamako in early 2013 . The United Nations has said it will not accept the results of a referendum on independence in Catalonia, which Madrid says is illegal and unconstitutional. It is the third time there have been casualties among U.N. personnel in past week . Militants took advantage of post-coup chaos in 2012 , spurring international intervention .
U.N. : The United Nations has said it will not accept the results of a referendum on independence in Catalonia, which Madrid says is illegal and unconstitutional. It is the third time there have been casualties among U.N. personnel in past week . Militants took advantage of post-coup chaos in 2012 , spurring international intervention .