re-armament

verb (used with object)

1. to arm again.
2. to furnish with new or better weapons: As soon as the new rifle was in production, the troops were rearmed.

verb (used without object)

3. to become armed again.

verb

1. to arm again
2. (tr) to equip (an army, a nation, etc) with better weapons

n.

also rearmament, 1864; see re- + armament.