Trench footTrench foot, also known by other names, is a type of foot damage due to moisture. Initial symptoms often include tingling or itching which can progress to numbness. The feet may become red or bluish in color. As the condition worsens the feet can start to swell and smell of decay. Complications may include skin breakdown or infection. Trench foot occurs due to prolonged exposure of the feet to cold, damp, and often unsanitary conditions. Unlike frostbite, trench foot usually occurs at temperatures above freezing, and can be classed as a form of non-freezing cold injury.
Dugout (shelter)A dugout or dug-out, also known as a pit-house or earth lodge, is a shelter for humans or domesticated animals and livestock based on a hole or depression dug into the ground. Dugouts can be fully recessed into the earth, with a flat roof covered by ground, or dug into a hillside. They can also be semi-recessed, with a constructed wood or sod roof standing out. These structures are one of the most ancient types of human housing known to archaeologists, and the same methods have evolved into modern "earth shelter" technology.
StahlhelmThe Stahlhelm ('steel helmet') is a German military steel combat helmet intended to provide protection against shrapnels and fragments or shards of grenades. The term Stahlhelm refers both to a generic steel helmet and more specifically to the distinctive German military design. The armies of major European powers introduced helmets of this type during World War I. The German Army began to replace the traditional boiled leather Pickelhaube ('spiked helmet') with the Stahlhelm in 1916.
Shock tacticsShock tactics, shock tactic, or shock attack is the name of an offensive maneuver which attempts to place the enemy under psychological pressure by a rapid and fully-committed advance with the aim of causing their combatants to retreat. The acceptance of a higher degree of risk to attain a decisive result is intrinsic to shock actions. Shock tactics were usually performed by heavy cavalry, but were sometimes achieved by heavy infantry. The most famous shock tactic is the medieval cavalry charge.
Counter-battery fireCounter-battery fire (sometimes called counter-fire) is a battlefield tactic employed to defeat the enemy's indirect fire elements (multiple rocket launchers, artillery and mortars), including their target acquisition, as well as their command and control components. Counter-battery arrangements and responsibilities vary between nations but involve target acquisition, planning and control, and counter-fire. Counter-battery fire rose to prominence in World War I. Counter-battery radar detects incoming indirect fire and calculates its point of origin.
Ypres SalientThe Ypres Salient, around Ypres, in Belgium, was the scene of several battles and a major part of the Western Front during World War I. Ypres lies at the junction of the Ypres–Comines Canal and the Ieperlee. The city is overlooked by Kemmel Hill in the south-west and from the east by low hills running south-west to north-east with Wytschaete (Wijtschate), Hill 60 to the east of Verbrandenmolen, Hooge, Polygon Wood and Passchendaele (Passendale).
