This practice of inspections led to the coining of the English idiom
to assemble (troops, a ship's crew, etc.), as for battle, display, inspection, orders, or discharge. 2. to gather, summon, rouse (often followed by up): He mustered ...
Definition of “
So, first of all, the expression you're aiming at is
Definition of '
When military troops are assembled for a review, they are mustered. A soldier
who passes inspection is said to “