noun
supply route; supply road; line of communications
Refers to a route used for transporting supplies, often in military or logistical contexts. The gloss 'communications' is a military term for supply and transport lines.
敵軍は補給路を断たれた。
The enemy's supply route was cut off.
補給路の確保が作戦の鍵だ。
Securing the supply route is key to the operation.
Compound of 補給 (supply, replenishment) and 路 (road, route).