The proposal was inspired by the complaints of NATO countries that the nuclear defense of Europe was beholden to the Americans, who held the bulk of nuclear capability. The result would be a fleet of warships manned and operated by NATO command, instead of an assortment of independent forces ultimately under their own domestic banners. In this way, other NATO powers were theoretically ensured an active role in European defense.
The idea of using surface ships as part of the force received criticism in Europe, who felt that surface ships would be vulnerable to attack, while a wholly submarine force would be more difficult to eliminate. President Kennedy argued that using only submarines would defeat the purpose of minimizing American control of the force, as the United States was the primary power capable of building the requisite number of submarines and training their crews. Including surface vessels would allow for greater European involvement in both construction and training, argued Kennedy, who also dismissed the notion that an entire pan-Europe nuclear-armed fleet could be eliminated before any of them could commit retaliatory strikes.
The proposal eventually fell flat when American and European differences over basing strategies and financing could not be reconciled.
The prospect of having Germany in the Multilateral Force was mocked by Tom Lehrer in the satirical song MLF Lullaby.

