Commando is a soldier or operative of an elite light infantry or special operations forces often specializing in amphibious landings, parachuting or rappelling. Originally "a commando" was a type of combat unit, as opposed to an individual in that unit. In other languages, commando and kommando denote a "command", including the sense of a military or an elite special operations unit.
In the militaries and governments of most countries, commandos are distinctive in that they specialize in assault on unconventional high-value targets. However, the term commando is sometimes used in relation to units carrying out the latter tasks (including some civilian police units).
In English, occasionally to distinguish between an individual commando and the unit Commando, the unit is capitalized.
Read more about Commando: Etymology, History, After 1945