Task: Text Categorization
Input (English): As a young man, he was so ill-behaved that his tutor Hirate Masahide committed seppuku. After allying with the neighboring Imagawa and Kira clans, his victory at the Battle of Ino secured mastery over his native Owari province. He became the protector of Yoshiaki, defeating the Rokkaku clan who supported his rival Yoshihide. He pioneered arquebus tactics while wiping out the Takeda at the Battle of Nagashino and revolutionized fortification with his Azuchi Castle, but his most masterful victory came at the Battle Okehazama. Treacherously beheaded by one of his generals, for ten points name this Sengoku warlord and first unifier of Japan.
Output (English): History