A military engineer is a soldier who's occupation involves Military Engineering. According to NATO, "Military Engineering is that engineer activity undertaken, regardless of component or service, to shape the physical operating environment.' Military Engineering incorporates support to manoeuvre and to the force as a whole, including military engineering functions such as engineer support to Force Protection, Counter - Improvised Explosive Devices, Environmental Protection, Engineer Intelligence and Military Search. Military Engineering does not encompass the activities undertaken by those 'engineers' who maintain, repair and operate vehicles, vessels, aircraft, weapon systems and equipment." The military engineer is primarily responsible for the design and construction of offensive, defensive, and logistical structures for warfare. Other duties include the layout, placement, maintenance and dismantling of defensive minefields and the clearing of enemy minefields and the construction and destruction of bridges.