FD Squadrons are organized at the battalion level during wartime, and normally field reinforced company-sized units.

The reserve battalion could in theory be used to reinforce units up front or to launch a surprise attack.

During their period of federal service, many pilots were sent to Japan and South Korea to reinforce active-duty units.

It was broken up to reinforce existing units of the Canadian Corps in France.

Consequently during the height of the offensive it was decided to disband three battalions-the 36th, 47th and 52nd-in order to reinforce other units.

Cobra helicopter gunships were reported reinforcing the troops and armored units.

By August, the Poles mobilised almost 1 million men, which allowed them to reinforce most front-line units to approximately 50-60% of their nominal strength.

First activated in 1917, the brigade was deployed to France during World War I and used to reinforce front-line units.

This unit was later broken up as its members were required to reinforce other units at the front.

However such was the shortage of reinforcements that 18th Infantry Brigade was broken up and the personnel were used to reinforce other units.