Exterritoriale Selbstverteidigung im unwilligen oder unfähigen Staat.

Extraterritorial Self-Defence in an Unwilling or Unable State
According to recent State practice, a State imperilled by non-State actors is entitled to the use of force within the territory of another State, if the latter is unwilling or unable to constrain the threats these non-State actors pose. The study therefore examines whether the so-called »unwilling or unable standard« can be considered as part of the existing body of international law, as it puts the ban on the use of force - a peremptory norm of general international law - to a particular test.