noun, noun or participle which takes 'suru'
theoretical armament; being armed with theory; preparing a theoretical argument
Used when someone equips themselves with theoretical knowledge or ideological justification to defend a position or attack an opponent's argument. Often implies a strategic, debate-ready stance.
彼は議論の前にしっかり理論武装してきた。
He came well-armed with theory before the debate.
その政策に
That policy lacks sufficient theoretical backing.