This article examines the legal status of armed forces present in friendly foreign territory with a special focus on criminal jurisdiction. Traditionally, this issue has been considered from the perspective of public international law in which immunities play an important role. However, this perspective does not fully cover the criminal jurisdiction provisions in the international agreements dealing with the status of visiting forces (Status of Forces Agreements). This article introduces military operational law as an additional perspective to better understand this specific approach of Status of Forces Agreements.