A loaded march is a relatively fast march over distance carrying a load. It is both a common military exercise and a civilian activity. A loaded march is known as a forced foot march in the US Army. Less formally, it is a ruck march in the Canadian Armed Forces and the US Army, a tab in British Army slang, a yomp in Royal Marinesslang, stomping in Australian Army slang, and a hump in the slang of the United States Marine Corps. As a civilian exercise, loaded marching comes under the category of 'hiking', although this includes activities not vigorous enough to be compared to loaded marching. Civilian activities analogous to loaded marches are quite popular in New Zealand, where they are organised by "tramping clubs". In many countries, the ability to complete loaded marches is a core military skill, especially for infantry and special forces. Loaded marching is particularly important in Britain, where all soldiers must complete annual loaded march tests. In certain climates, the use of loaded marches is limited, since they would result in high casualty rates through heat exhaustion.
According to Vegetius, during the four-month initial training of a Roman legionary, loaded marches were taught before recruits ever handled a weapon; since any formation would be split up by stragglers at the back or soldiers trundling along at differing speeds. Standards varied over time, but normally recruits were first required to complete 20 Roman miles with 20.5 kg in five summer hours, which was known as "the regular step" or "military pace". They then progressed to the "faster step" or "full pace" and were required to complete 24 Roman miles in five summer hours loaded with. Training also included some forced marches of 20–30 miles, often followed by the construction of basic defences for an overnight position. In some cases, each member of a Roman unit marched with a sudis, to aid the construction of defences.
In the British Army, loaded marching is considered a core skill and is tested annually in a Annual Fitness Test carrying 15–25 kg depending on the arm. However, infantry soldiers are additionally expected to complete advanced tests, typically a first day of 20 km with in three and a half hours, followed by a similar march with the next day. Within each arm, more demanding units exist and have their own internal standards and tests. Special forces also use their own tests. During the current selection process, Army recruits are usually made to tab as an introduction. This is because injuries to the legs are common during basic training tabbing. The British Armyslang termtab derives from the acronym for Tactical Advance to Battle. Loaded marches have been particularly important in the British Army since the 1982 Falklands War. Many British commanders felt that British success in the war was linked to the British soldiers' ability to march across the difficult Falklands terrain with their kit. British infantry soldiers in Afghanistan conducted four-hour patrols carrying an average of of equipment, going into battle with that weight if they encountered enemy fighters. There is some debate as to whether this makes them better equipped for battle or weighs them down too much.
To complete training and as part of an annual test of their fitness, legionnaires must complete the 8 kilometres TAP of loaded with rifle, helmet and a pack in under 40 minutes, and a night march of in three hours with a load of. Various marches of much longer distances are also a part of training such as the "Kepi march" of in full combat gear carrying a rifle, helmet and load and the "Raid march" of 100 km in full combat gear carrying a rifle, helmet and load simulating the navigation to and raiding of different checkpoints over a 3 day period. As part of the pre-selection for the Foreign Legion's GCP section, legionnaires must complete a speed march in under 4 hours in full combat gear, including boots, carrying assaut rifle, helmet, two full canteens of water and load. The fastest time was recorded in 1995 by CCH G. Pelham in 2 hours 28 minutes. Up until the 1990s legionnaires were made to place extra rocks in their backpacks and shoulder straps were replaced with wire as punishment.
Loaded marches in the United States Army are known as ruck marches and are part of basic recruit training. In order to gain the Expert Infantryman Badge candidates must complete a ruck march of within three hours, carrying a rifle and load. The total load may be up to. The march is individual rather than in a squad, so an individual may achieve a better time than the three-hour requirement.