military affairs; martial arts
A somewhat formal or literary term covering both military matters and martial disciplines. In modern contexts, it may appear in historical or traditional discussions.
He has devoted himself to martial arts since his youth.
This book describes medieval military affairs in detail.
Compound of 武 (bu, 'military, martial') and 事 (ji, 'matter, affair'). The exact historical derivation is uncertain, but the word has been used in classical and literary contexts to refer to martial or military matters.