Shortly after peace was made between its neighbors, Eisneria's military went through major reforms, becoming a fully-mechanized National Guard with a primary defensive purpose, and a limited UN peacekeeping role. They quickly changed their weapons, formerly supplied by the war profiteer Gustav Havoc, for NATO-standard gear, with the United Kingdom as its main importer of small arms, armored vehicles, & aircraft. It also selected the Cypriot National Guard camouflage for its uniforms, to suit the mountainous environment. Since 9/11, it formed dedicated counter-terrorist brigade to protect its people from acts of terrorism.

Eisneria received a shipment of ex-British Harrier jump jets for the Air National Guard department, as its primary air defense fighters and close-air support aircraft in the mountainous terrain.