boot camp

Etymology
From in the US military slang sense of “new recruit” +.

Noun

 * 1)  Initial, basic indoctrination, physical fitness training and basic instruction in service-related subjects for new recruits in the armed forces (army, Air Force, navy and Marine Corps).
 * 2)  A short, intensive, quasi-military program generally aimed at young offenders as an alternative to a jail term.
 * 3)  Any short, intensive course of training.

Translations

 * Russian: исправи́тельная коло́ния


 * Finnish: intensiivikurssi
 * Hungarian: intenzív kiképzés
 * Russian: уче́бный курс, интенси́вный курс