Lockheed Martin of operations to create new tactics and weapons. In August, 2018, a laser-guided Mark 82 bomb sold by the US and built by Lockheed Martin was used in the Saudi-led coalition airstrike on a school bus in Yemen, which killed 51 people, including 40 children. Lockheed Martin Lockheed Martin Corporation is an American global aerospace, defense, security and advanced technologies company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in North Bethesda, Maryland, in the Washington, DC, area. Lockheed Martin employs approximately 100,000 people worldwide as of
General Dynamics corporation's subsidiaries are donors to the Canadian Defence and Foreign Affairs Institute. General Dynamics General Dynamics Corporation (GD) is an American aerospace and defense multinational corporation formed by mergers and divestitures. It is the world's fifth-largest defense contractor based on 2012 revenues. The company ranked No. 99 in the 2018 Fortune 500 list of the largest United States corporations by total revenue. It is headquartered in West Falls Church, Fairfax County, Virginia. The company has changed markedly in the post–Cold War era of defense consolidation. It has four main business segments: Marine Systems, Combat Systems, Information Systems Technology, and Aerospace.