I wonder what kind of martial arts did the japanese military use during WWII ? I know that the japanese were not only suicidal warriors in the air towards the naval battleships. The japanese soldiers were so fast that they were frightening suicidal hand to hand assassins on the Pacific islands when it came down to no rifles, no more grenades and broken bayonets from hand to hand fighting that was so violent that nobody in their right minds would fight the japanese, yet the US Marines took them on. That was very crazy and scary huh ? My granddaddy said that sometimes the japanese preferred hand to hand fights to the death even if they had full clips of ammo, a round in the chamber and bayonets, grenades on their belts. They truly were warriors that really loved to fight. The US Marines really enjoyed fighting the japanese soldiers. My granddaddy said thath he would give anything to go back and fight like that with the japanese. He really appreciated the japanese being warriors and fighters. What did the japanese military train with for speed, power and balance ? What was their body conditioning program like ? What kind of improvements did the japanese military make to the martial arts during WWII ? Are there books that discuss the japanese military hardcore martial arts training during WWII ? What is modern day japanese military martial arts training like today ?