Green energy is going to war.

Starting in June, defense companies including Thales SA and Multicon Solar AG will join NATO to test the military’s ability to use renewable power in combat and humanitarian operations.

About 1,000 North Atlantic Treaty Organization soldiers will spend 12 days deploying wind turbines, solar panels and self-contained power grids in Hungary, according to Susanne Michaelis, the group’s action officer for smart energy.

The soldiers will test small solar power plants that open within 10 minutes like flowers to the sun, highly insulated tents and solar-powered battery chargers — technologies that displace conventional fuels which must be delivered along vulnerable supply lines. The testing follows the wounding or killing of 3,000 U.S. soldiers in attacks on fuel and waterconvoys in Iraq and Afghanistan, according to NATO.