戦う, 闘う, 斗う, たたかう
Conjugated: 戦った
Godan verb, Intransitive, esp. 戦う
1. to make war (on), to wage war (against), to go to war (with), to fight (with), to do battle (against)
2. to compete (against)
esp. 闘う
3. to struggle (against adversities, etc.), to contend, to resist
おまえも決して戦う拳を忘れるな。