The use of military forces to intervene in another country's or region's internal affairs or conflict; armed intervention.
その国への軍事介入は国際法上の議論を呼んだ。
The military intervention in that country sparked debates under international law.
市民の保護を名目にした軍事介入は、しばしば政治的な影響をもたらす。
Military interventions carried out under the pretext of protecting civilians often have political consequences.