 By 1969, Intercontinental ballistic missiles (ICBM) had been deployed and become operational as part of the United States' strategic triad, and the need for B-52s had been reduced.In addition, funds were also needed to cover the costs of combat operations in Indochina.The 70th Bombardment Wing was inactivated 31 December 1969, and its aircraft were reassigned to other SAC units.