On the eve of the war, Egypt massed approximately 100,000 of its 160,000 troops in the Sinai, including all seven of its divisions (four infantry, two armoured and one mechanized), four independent infantry brigades and four independent armoured brigades. Over a third of these soldiers were veterans of Egypt's continuing intervention into the North Yemen Civil War and another third were reservists. These forces had 950 tanks, 1,100 APCs, and more than 1,000 artillery pieces.