A soldier performs during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. Iraqi Defence Minister Khaled al-Obeidi said on Tuesday that the Iraqi military has started rebuilding after its near total collapse last summer but that the effort is still in its initial phase. (Photo by Thaier al-Sudani/Reuters)

Members of an honour guard take part in a ceremony marking Iraqi Army Day celebrations in Baghdad January 6, 2015. Iraq's Prime Minister Haider al-Abadi laid a wreath on the Unknown Soldiers Monument at Baghdad's fortified Green Zone to celebrate Iraq army day. (Photo by Ahmed Saad/Reuters)

Iraqi soldiers march in a parade during the Iraqi Army Day celebration, in Kerbala, southwest of Baghdad, January 6, 2015. (Photo by Mushtaq Muhammed/Reuters)

Iraqi soldiers ride in military vehicles at a parade during the Iraqi Army Day celebration in Kerbala, southwest of Baghdad, January 6, 2015. (Photo by Mushtaq Muhammed/Reuters)

Iraqi soldiers take part in their graduation ceremony during the Iraqi Army Day's anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi soldiers take part in their graduation ceremony during the Iraqi Army Day's anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi soldiers take part in their graduation ceremony during the Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Ahmad Mousa/Reuters)

Iraqi soldiers march in their graduation ceremony during the Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi soldiers take part in their graduation ceremony during the Iraqi Army Day's anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Families of officers celebrate at a graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi soldiers take part in their graduation ceremony during the Iraqi Army Day's anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers take part in their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers march as they participate in their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers march as they participate in their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi soldiers march in their graduation ceremony during the Iraqi Army Day's anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers march as they participate in their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers take part in their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi Air Force helicopters fly past during the Iraqi Army Day's anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers march as they participate in their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

A soldier performs during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi Prime Minister Haider al-Abadi takes part in the Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Iraqi officers react during their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. Iraqi Defence Minister Khaled al-Obeidi said on Tuesday that the Iraqi military has started rebuilding after its near total collapse last summer but that the effort is still in its initial phase. (Photo by Ahmad Mousa/Reuters)

A family member hugs an officer at his graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

An officer is surrounded by family members as they celebrate at his graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

An officer is surrounded by family members as they celebrate at his graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Officers react at their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

Officers react at their graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)

A officer is hugged as family members surround him at his graduation ceremony during Iraqi Army Day anniversary celebration in Baghdad January 6, 2015. (Photo by Thaier al-Sudani/Reuters)