 The US military is said to have considered Taiwan since the Chinese Civil War, and the British Isles and Japan during the Cold War, as unsinkable aircraft carriers.In 1983, Japanese Prime Minister Yasuhiro Nakasone pledged to make Japan an "unsinkable aircraft carrier in the Pacific", assisting the US in defending against the threat of Soviet bombers.US Secretary of State General Alexander Haig described Israel as "the largest American aircraft carrier in the world that cannot be sunk".