Casualty (person) in the context of "World War II casualties"

Peacekeeping comprises activities intended to create conditions that favor lasting peace. Research generally finds that peacekeeping reduces civilian and battlefield deaths, as well as reduces the risk of renewed warfare.

Within the United Nations (UN) group of nation state governments and organizations, there is a general understanding that at the international level, peacekeepers monitor and observe peace processes in post-conflict areas, and may assist ex-combatants in implementing peace agreement commitments that they have undertaken. Such assistance may come in many forms, including confidence-building measures, power-sharing arrangements, electoral support, strengthening the rule of law, and economic and social development. Accordingly, the UN peacekeepers (often referred to as Blue Berets or Blue Helmets because of their light blue berets or helmets) can include soldiers, police officers, and civilian personnel.

A conflagration is a particularly large and destructive fire. In the built environment, this may describe a fire that spreads via structure to structure ignition due to radiant or convective heat, or ember transmission. Conflagrations often damage human life, animal life, health, and/or property. A conflagration can begin accidentally or be intentionally created (arson). A very large fire can produce a firestorm, in which the central column of rising heated air induces strong inward winds, which supply oxygen to the fire. Conflagrations can cause casualties including deaths or injuries from burns, collapse of structures and attempts to escape, and smoke inhalation.

Firefighting is the practice of extinguishing a conflagration, protecting life and property and minimizing damage and injury. One of the goals of fire prevention is to avoid conflagrations. When a conflagration is extinguished, there is often a fire investigation to determine the cause of the fire.

Trench warfare is a type of land warfare using occupied lines largely comprising military trenches, in which combatants are well-protected from the enemy's small arms fire and are substantially sheltered from artillery. It became archetypically associated with World War I (1914–1918), when the Race to the Sea rapidly expanded trench use on the Western Front starting in September 1914.

Trench warfare proliferated when a revolution in firepower was not matched by similar advances in mobility, resulting in a grueling form of warfare in which the defender held the advantage. On the Western Front in 1914–1918, both sides constructed elaborate trench, underground, and dugout systems opposing each other along a front, protected from assault by barbed wire. The area between opposing trench lines (known as "no man's land") was fully exposed to artillery fire from both sides. Attacks, even if successful, often sustained severe casualties.

The First Battle of Grozny was the Russian Army's invasion and subsequent conquest of the Chechen capital, Grozny, during the early months of the First Chechen War. The attack would last from December 1994 to March 1995, which resulted in the military occupation of the city by the Russian Army and rallied most of the Chechen nation around the government of Dzhokhar Dudayev.

The initial assault resulted in considerable Russian casualties and demoralization in the Russian forces. It took another two months of heavy fighting, and a change in tactics, before the Russian Army was able to capture Grozny. The battle caused enormous destruction and casualties amongst the civilian population and saw the heaviest bombing campaign in Europe since the end of World War II.

A field hospital is a temporary hospital or mobile medical unit that takes care of casualties on-site before they can be safely transported to more permanent facilities. This term was initially used in military medicine but it has also been used to describe alternate care sites used in disasters and other emergency situations.

A field hospital is a medical staff with a mobile medical kit and, often, a wide tent-like shelter (at times an inflatable structure in modern usage) so that it can be readily set up near the source of casualties. In an urban environment, the field hospital is often established in an easily accessible and highly visible building (such as restaurants, schools, hotels and so on). In the case of an airborne structure, the mobile medical kit is often placed in a normalized container; the container itself is then used as shelter. A field hospital is generally larger than a temporary aid station but smaller than a permanent military hospital.

Missing in action (MIA) is a casualty classification assigned to combatants, military chaplains, combat medics, and prisoners of war who are reported missing during wartime or ceasefire. They may have been killed, wounded, captured, executed, or deserted. If deceased, neither their remains nor their grave have been positively identified. Becoming MIA has been an occupational risk for as long as there has been warfare.