Assertion: soviet martial art | /r/HasProperty | direct descendant of judo
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text: Sambo (an acronym from samozashchita bez oruzhia, Russian for "self defense without a weapon") was an early Soviet martial art, a direct descendant of Judo, developed in the 1920s by Viktor Spiridonov, the Dynamo Sports Society Jujutsu instructor, and Russo-Japanese War veteran.