shells

An armed member of the Houthi militia calls for help near a house allegedly destroyed in an airstrike carried out by the Saudi-led coalition targeting two military bases controlled by Houthi fighters in Sana a, Yemen, 20 April 2015. A huge explosion rocked Sana'a as airstrikes carried out by the Saudi-led coalition hit what witnesses said was a base used by a missile brigade of the Yemeni army, but is now controlled by the Houthis, the explosions damaging nearby civilian housing

Yahya Arhab/EPA

An armed member of the Houthi militia calls for help near a house destroyed in an airstrike carried out by the Saudi-led coalition targeting two military bases controlled by Houthi fighters in Sanaa, Yemen on Monday

Syrian girls walk with their mother as she turns to look at smoke billowing from three shells dropped on the town of Al-Bara in the northwestern province of Idlib

Daniel Leal-Olivas/AFP/Getty Images

Two girls walk with their mother as she turns to look at smoke billowing from three shells dropped on the town of Al-Bara in the northwestern province of Idlib.