Iraqi volunteers from the Yazidi sect learn how to handle a weapon during a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect learn how to handle a weapon during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY)
Iraqi volunteers from the Yazidi sect sit on the ground during a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect sit on the ground during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT)
Iraqi volunteers from the Yazidi sect attend a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect attend a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT)
Iraqi volunteers from the Yazidi sect listen to a commander during a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect listen to a commander during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY)
Iraqi volunteers from the Yazidi sect attend a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect attend a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT)
Iraqi volunteers from the Yazidi sect walk in a line during a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect walk in a line during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY)
Iraqi volunteers from the Yazidi sect gather during a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect gather during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY)
Iraqi volunteers from the Yazidi sect gather during a training camp at the Serimli military base, which is controlled by the YPG, in Qamishli
Iraqi volunteers from the Yazidi sect gather during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY TPX IMAGES OF THE DAY)
Iraqi volunteers from the Yazidi sect gather during a training camp at the Serimli military base, which is controlled by YPG, in Qamishli
Iraqi volunteers from the Yazidi sect gather during a training camp at the Serimli military base, which is controlled by the Kurdish People's Protection Units (YPG), in Qamishli, northeastern Syria on the border with Kurdistan August 16, 2014. The YPG is training 55 Yazidi recruits with skills to help them fight against the Islamic State militant group. Proclaiming a 'caliphate' straddling parts of Iraq and Syria, the radical Islamists have swept across northern Iraq in recent weeks, pushing back Kurdish regional forces and driving tens of thousands of Christians and members of the Yazidi religious minority from their homes. REUTERS/Youssef Boudlal (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY TPX IMAGES OF THE DAY)
Islamic State executed 700 people from Syrian tribe -monitoring group
Syrian Observatory for Human Rights cites reports of beheadings being used to execute many of the al-Sheitaat tribe