The Multilateral Force (MLF) was an American proposal to produce a fleet of ballistic missile submarines and warships, each crewed by international NATO personnel, and armed with multiple nuclear-armed Polaris ballistic missiles. Its mission would be a nuclear defence of Western Europe against Soviet threats in the Cold War while allowing NATO members besides the U.S. to play a role in nuclear warfare. The proposal was floated by the Eisenhower, Kennedy, and Johnson administrations. It was opposed by Britain and faded out in the mid 1960s. It was never adopted.[1]