Military accidents can involve errors of human judgement or instrument failure, and can increase the risk of conflict or war. They may include: accidental entry into national territory of adversary because of adverse weather, instrument malfunctions, troop or ship manoeuvres in regions of tension, and mistaken identities.
A USA official admitted that American pilots acted in error when they fired heat-seeking missiles at targets in the no-fly zone over southern Iraq, and one another occasion in mid-1983.