>>76278244
>Opinions on judo as a martial art?
Old school Judo/Jiu Jitsu is one of the few arts that worked great in warfare, especially WW1 and WW2. However, the Japanese Judoka lost in hand to hand to the German Jiu Jitsu enjoyers during the Chinese-Japanese War, back before Japs allied with Germany. Back then, Germany was allied with China. This changed quickly during the war, ofc, but there you go. Modern Judo, however? Well, pic related.

Still interested? Look up the training books by Draeger on archive.org.