The phrase "adjacent territory" is correct and usable in written English.
It can be used to refer to land or areas that are next to or near each other, often in discussions about geography, property, or political boundaries.
Example: "The new development project will extend into the adjacent territory, which has been underutilized for years."
Alternatives: "neighboring area" or "contiguous land".
In April 1941, Yugoslavia was occupied by Nazi Germany and Italy, the latter annexing or occupying the Croatian Littoral, although the armistice between Italy and Allied armed forces of World War II and the 1947 Treaty of Peace with Italy reversed wartime Italian territorial gains, awarding the entire region and adjacent territory to Yugoslavia and the Federal State of Croatia.
Only twenty per cent was "to keep SVN [South Vietnam] (and the adjacent) territory from Chinese hands".
Now, however, things may change.A ceasefire in 1994 left Armenia in control both of Karabakh itself and of swathes of adjacent territory.
His first ethnological work, An Analytical and Critical Bibliography of the Tribes of Tierra del Fuego and Adjacent Territory (1917), marked the beginning of his writing on marginal cultures.
Among them: Allergic and autoimmune conditions are far more frequent in rich countries than poor ones, even among genetically identical populations (West Germany far outpaced East Germany in their frequency, as does Finland compared with an impoverished adjacent territory under Russian control).
World history is full of examples of one society gradually expanding by incorporating adjacent territory and settling its people on newly conquered territory.
By taking over adjacent territories, territorial lesser sheathbills Chionis minor queue toward territories with seabird colonies, where they attain the highest breeding success (Bried and Jouventin 1998).
Within a neighbourhood, males defend stable and adjacent territories with conspicuous territorial behaviour [9].
None of the leaders in adjacent territories cared to go along.
One of them, the Marcomanni, inhabited Bohemia, while others settled in adjacent territories.
Aswān, also spelled Assuan or Assouan, muḥāfaẓah (governorate), Upper Egypt, embracing the Nile River floodplain and immediately adjacent territories.
