Urban Warfare - Urban Operations

Urban Operations

Urban military operations in World War II often relied on large quantities of artillery fire and air support varying from ground attack fighters to heavy bombers. In some particularly vicious urban warfare operations such as Stalingrad and Warsaw, all weapons were used irrespective of their consequences.

However, when liberating occupied territory some restraint was often applied, particularly in urban settings. For example, Canadian operations in both Ortona and Groningen avoided the use of artillery altogether to spare civilians and buildings, and during the Battle of Manila in 1945, General MacArthur initially placed a ban on artillery and air strikes to save civilian lives.

Armies are bound by laws of war governing military necessity to the amount of force which can be applied when attacking an area where there are known to be civilians. Until the 1970s this was covered by customary law and IV Hague Convention "The Laws and Customs of War on Land" of 1907 and specifically articles 25–29. This has since been supplemented by the "Additional Protocols to the Geneva Conventions of 12 August 1949, and relating to the Protection of Victims of International and Non-International Armed Conflicts."

Sometimes distinction and proportionality, as in the case of the Canadians in Ortona, causes the attacking force to restrain from using all the force they could when attacking a city. In other cases, such as the Battle of Stalingrad and the Battle of Berlin, both armies considered evacuating civilians only to find it impractical.

When Russian forces attacked Grozny in 1999, large amounts of artillery fire were used. The Russian Army handled the issue of civilian casualties by warning the inhabitants that they were going to launch an all-out assault on Grozny and requested that all civilians leave the city before the start of the artillery bombardment.

Fighting in an urban environment can offer some advantages to a weaker defending force or to guerrilla fighters through ambush-induced attrition losses. The attacking army must account for three dimensions more often, and consequently expend greater amounts of manpower in order to secure a myriad of structures, and mountains of rubble.

Ferroconcrete structures will be ruined by heavy bombardment, but it is very difficult to demolish such a building totally when it is well defended. Soviet forces had to fight room by room; while defending the Red October Steel Factory during the Battle of Stalingrad, and in 1945, during the race to capture the Reichstag; despite heavy bombardment with artillery at point blank range (including 203 mm howitzers).

It is also difficult to destroy underground or heavily fortified structures such as bunkers and utility tunnels; during the Battle of Budapest in 1944 fighting broke out in the sewers, as both Axis and Soviet troops used them for troop movements.