Operation Behemoth

Operation Behemoth-1, Behemoth-2 (Russian: Бегемот - Begemot, Hippopotamus) were military exercises held by the Soviet Northern Fleet in 1989 and 1991.

The operation failed due to a leak of fuel and oxidizer from missile number six just prior to the start.

In the interests of the reduction of expenditures the operation was conducted on the planned combat training of the crew of submarine and the regular flight only of two rockets.

The rockets, which start in the volley of the first and last, had to run complete flight program and fall onto the assigned aiming points.

The remaining rockets, which participate in the volley, had to from all parameters of launch completely correspond to combat missiles, but the height of their flight could be arbitrary.