[トモダチさくせん(トモダチ作戦);ともだちさくせん(友達作戦), tomodachi sakusen ( tomodachi sakusen ); tomodachisakusen ( tomodachi sakusen )](n) Operation Tomodachi; United States Armed Forces assistance operation to support Japan in disaster relief following the 2011 Tohoku earthquake and tsunami[Add to Longdo]