The Pentagon asked Congress to postpone the introduction of a ban on Russian engines RD-180
Pentagon. Photo: Defense.gov The US Department of Defense appealed to Congress with a request to extend the permission for the operation of Russian-made RD-180 missile engines. This was told by the head of the space command of the US Air Force, General John Haiten, TASS reports. Earlier, in December 2014, the Congress adopted a legislative act, according to which an American engine should be used instead of RD-180 since 2019.