noun, noun or participle which takes 'suru', intransitive verb
rushing into; breaking into; storming
Physical entry with force, speed, or suddenness. Often used for police, soldiers, vehicles, or groups entering a place abruptly; the destination is commonly marked with に.
警察が建物に突入した。
The police stormed into the building.
車がコンビニに突
A car crashed into a convenience store.
noun, noun or participle which takes 'suru', intransitive verb
plunging into; entering a new phase; embarking on
Figurative use for entering a major situation, period, phase, or undertaking, often with a sense that events have begun in earnest or cannot easily be stopped.
その国は戦争に突入した。
The country plunged into war.
プロジェクトは最終段階に突入した。
The project entered its final stage.