sentences:  Many of these military facilities were influenced by the U.S., with the needs of cold war aircraft and deployment strategies in mind.Also the Saudis purchased a great deal of weapons that varied from F-15 war planes to M1 Abrams main battle tanks that later proved useful during the Gulf War.The U.S. pursued a policy of building up and training the Saudi military as a counterweight to Shiite extremism and revolution following the revolution in Iran.