Saudi-led coalition involved in a war in Yemen signed on Monday a Memorandum of Understanding (MoU) with the United Nations to protect Yemeni children, Saudi Press Agency reported.

The Joint Forces Commander of the Coalition, Fahad Bin Turki Bin Abdulaziz and the Special Representative of the Secretary-General for Children and Armed Conflict, Virginia Gamba, signed the MoU in Riyadh.

The deal aims to strengthen the protection of children affected by the armed conflict in Yemen.

Abdulaziz affirmed his hopes of close cooperation in regard to the memorandum with the United Nations, especially that it serves a "noble cause."

The Saudi-led war in Yemen against Houthis in support of the Yemeni exiled government will complete its fourth year on Tuesday as it started on March 26, 2015.