Sixteenth century Japan was a maelstrom of warring clans. In 1595 the samurai of Takeda Katsuyori stormed the castle of Nagashino, defended by 3,000 musketeers under Oda Nobunaga. The cream of Japan`s warrior elite were slaughtered by the humble Ashigaru armed with their lethal arquebuses, changing the face of Japanese warfare forever.