The Abkhazia–Georgia separation line is a de facto boundary set up in aftermath of the War in Abkhazia and Russo-Georgian War, which separates the self-declared Republic of Abkhazia from the territory controlled by the Government of Georgia. Republic of Abkhazia, and those states that recognise its independence, view the line as an international border separating two sovereign states, whereas the Georgian government and most other countries refer to it as an 'Administrative Border Line' within Georgian territory. The Georgian government views Abkhazia as a Russian-occupied Georgian territory and designates the de facto boundary as an occupation line in accordance with the Georgian "Law on Occupied Territories of Georgia". The Constitution of Georgia recognizes Abkhazia as autonomous within Georgia, therefore the line corresponds to the 'Administrative Border' of the Autonomous Republic of Abkhazia within Georgian territory.

Since the dissolution of the Soviet Union in 1991, Russia has been involved in territorial disputes with a number of other post-Soviet states. These disputes are primarily an aspect of the post-Soviet conflicts, and have led to some countries losing parts of their sovereign territory to what a large portion of the international community designates as a Russian military occupation. As such, these lands are commonly described as Russian-occupied territories, regardless of what their status is in Russian law. The term is applied to Georgia, Moldova, and Ukraine.