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Defendu
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<p>Close Quarters Combat System (also known as Defendu) is a modern <a href="/facts/Martial_arts/IhdD9nVI">martial art</a> developed by <a href="/facts/William_E._Fairbairn/rSDvUaHw">William E. Fairbairn</a> and <a href="/facts/Eric_A._Sykes/XCajj7jg">Eric A. Sykes</a> prior to <a href="/facts/World_War_II/2efV5L1U">World War II</a>. It is a <a href="/facts/Hand-to-hand_combat/pDdNf0wR">hand-to-hand combat</a> system based on practical experience mixed with <a href="/facts/Jujutsu/M15HAeLA">Jujutsu</a> and <a href="/facts/Boxing/BrY1zmP4">boxing</a> that was developed to train the <a href="/facts/Shanghai_Municipal_Police/fpIKFvXt">Shanghai Municipal Police</a>, and was later taught in expanded form to <a href="/facts/Office_of_Strategic_Services/5dHfvPFc">Office of Strategic Services</a> and <a href="/facts/Special_Operations_Executive/Rln7PPh6">Special Operations Executive</a> members during World War II. </p>