Suicide Bombings Kill Pro-Iraq Forces in Anbar

U.S. soldiers (left) participate in a training mission with Iraqi army soldiers outside Baghdad, May 27, 2015. 

Iraqi, U.S. and Spanish soldiers participate in a training mission outside Baghdad, May 27, 2015.

Shi'ite paramilitary forces ride military vehicles traveling from Lake Tharthar toward Ramadi to fight against Islamic state militants, west of Samarra, Iraq May 27, 2015.

Mourners chant slogans against the Islamic State group as they carry the flag-draped coffins of three members of the Peace Brigades, a Shi'ite militia group loyal to Shi'ite cleric Muqtada al-Sadr during their funeral processions in Najaf, May 27, 2015.

Mourners chant slogans against the Islamic State group as they carry the flag-draped coffins of three members of the Peace Brigades, a Shi'ite militia group loyal to Shi'ite cleric Muqtada al-Sadr, who were killed during fighting with Islamic State militants, during the funeral in Najaf, south of Baghdad, May 27, 2015.