Urban warfare is combat which is conducted in cities. Urban warfare is different in both operational and tactical levels. There are a number of factors which can complicate a situation such as civilians and buildings. In war it is hard to distinguish between combatants and civilians in a city. Some individuals may be attempting only to protect their home, and not engage those fighting the war.
Urban warfare has tactics which are complicated by three dimensional environments where the field of view is limited. Concealment and cover is easier to find for both sides. Booby traps and snipers can also find better positions in urban warfare. Militaries are working on a way to make urban warfare safer with updated innovations like robots that can go in place of humans.