In his 1961 farewell address, U.S. President Dwight D. Eisenhower warned of the potential dangers of the "military-industrial complex," a powerful alliance between the nation's military and defense industries that could exert undue influence on public policy and potentially threaten liberty. He cautioned that while such a system was necessary for defense, its immense power could lead to miscalculations, unchecked expansion, and an unhealthy concentration of power