軍駐日本的基地是1945年美軍佔領日本後建立的，是二戰的產物之一，仍是美軍全球戰畧中重要一環，基地存續是美日軍事同盟的重要基礎。1951年簽訂了《日美安全保障條約》。該條約規定日本承認美國在日本駐紮陸海空軍；駐日美軍為維護遠東和平與保障日本的安全，應日本請求，可以用武力鎮壓內亂和暴動，以及對付外來的武力攻擊；美軍駐紮日本的條件依照日美兩國間的行政協定執行。1960年又簽訂了《新日美安全保障條約》。該協定額外新增了駐日美軍及軍屬在引發刑事案件，只有“在檢查當局起訴之後”，基地方面方可交出嫌疑犯等特權
The military base in Japan was established after the U.S. occupation of Japan in 1945. It is one of the products of World War II. It is still an important part of the U.S. global strategy. The survival of the base is an important basis for the U.S. – Japan military alliance. The Japan US security treaty was signed in 1951. The treaty stipulates that Japan recognizes the presence of the United States in Japan; In order to maintain peace in the Far East and ensure Japan’s security, the U.S. military stationed in Japan can use force to suppress civil unrest and riots and deal with foreign armed attacks at Japan’s request; The conditions for US troops stationed in Japan shall be implemented in accordance with the administrative agreement between Japan and the United States. In 1960, the new Japan US security treaty was signed. The agreement adds additional privileges for the U.S. military and military dependents in Japan to trigger criminal cases. The base can hand over suspects only “after being prosecuted by the inspection authorities”

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