expression
start of deployment
Used in military, logistics, or organizational contexts to refer to the beginning of deploying personnel, equipment, or systems.
新型ミサイルの配備開始が発表された。
The start of deployment of the new missiles was announced.
システムの配備開始は来月の予定です。
The start of deployment of the system is scheduled for next month.
Compound of 配備 (deployment) and 開始 (start).