die Bresche
breach
A gap or opening in a wall, rampart, or defensive line created by force, for example by shelling or an explosion.
Die Angreifer schlugen eine Bresche in die Stadtmauer.
The attackers made a breach in the city wall.

breach
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breach
A gap or opening in a wall, rampart, or defensive line created by force, for example by shelling or an explosion.
Die Angreifer schlugen eine Bresche in die Stadtmauer.
The attackers made a breach in the city wall.

The verb reveals the meaning: verbs like 'schlagen' (to strike/make), 'brechen' (to break), or 'schießen' (to shoot) point to the literal meaning, a gap in a wall. The verb 'springen' (to jump), on the other hand, is part of the fixed idiom.
Die Artillerie schoss eine Bresche in die Festungsmauer.
The artillery blasted a breach in the fortress wall.
In the literal, military sense, a breach is typically 'geschlagen' (made), 'gebrochen' (broken), or 'geschossen' (shot/blasted) 'in eine Mauer' (in a wall) or 'in die Verteidigung' (in the defenses).
Mit einer Ramme brachen sie eine Bresche in das Tor.
With a battering ram, they broke a breach in the gate.
The idiom is 'für jemanden in die Bresche springen' (to step into the breach for someone). The preposition 'für' introduces the person or thing being helped. The expression is used as a whole.
Als niemand helfen wollte, ist sie für ihre Nachbarin in die Bresche gesprungen.
When no one wanted to help, she stepped into the breach for her neighbor.
hole
'das Loch' and 'die Bresche' can both refer to an opening in something solid. 'Loch' is the general word for a hole or indentation and fits in many everyday situations. 'Bresche' is much more specific: it is created by force, for example by shelling or an explosion, usually in a wall or defensive structure. The word sounds more historical, military, or figurative. Learners may confuse the words because a 'Bresche' is also a kind of hole. But for ordinary things like clothing, paper, or tires, you do not say 'Bresche'; you say 'Loch'.

Die Explosion riss eine breite Bresche in die alte Mauer.
The explosion tore a wide breach in the old wall.
Du solltest das Loch im Zelt reparieren, bevor wir morgen weiterreisen.
You should repair the hole in the tent before we travel on tomorrow.