During civil wars, the districts occupied by rebels are considered to be foreign.Military Government and Martial Law LLMC, p. 21. [1]
google.co.uk
books.google.co.uk
Phillipson, Coleman (1916). Termination of War and Treaties of Peace. The Lawbook Exchange. p. 10. ISBN9781584778608. «The difference between effective military occupation (or conquest) and annexation involves a profound difference in the rights conferred by each».
Stirk, Peter (2009). The Politics of Military Occupation. Edinburgh University Press. p. 44. ISBN9780748636716. «The significance of the temporary nature of military occupation is that it brings about no change of allegiance. Military government remains an alien government whether of short or long duration, though prolonged occupation may encourage the occupying power to change military occupation into something else, namely annexation».