The phrase "a separate territory" is correct and usable in written English.
It can be used to describe a distinct area or region that is set apart from others, often in a political or geographical context.
Example: "The country is divided into several regions, each governed as a separate territory with its own laws."
Alternatives: "an independent region" or "a distinct area".
John Amagoalik, an Inuit political leader who helped create Nunavut as a separate territory a decade ago, objects to Mr Harper's repeated comment that Canada's choice in the Arctic is to "use it or lose it".
Alabama was established as a separate territory in 1817 and became a state in 1819.
He attempted there to carve out a separate territory for religious experience, as distinct from both science and morality.
After the Louisiana Purchase (1803), Arkansas lay within the territories of Louisiana until 1812 and Missouri until 1819, when it became a separate territory.
As the population around Puget Sound grew, agitation arose to form a separate territory of the area north and west of the Columbia.
Different rates of population growth and difficulties of communication continued to cause problems, and various movements called for the creation of a separate territory in eastern Washington and even the creation of an independent Pacific Republic.
The subjects of the study should be a separate territories within the regions which are implementing the innovative economic scenario.
In the germlines of AV221, we saw a portion of the chromosome IV paint associated with chromosome III paint, and a second separate territory hybridizing only to chromosome IV paint.
The Hindus of Jammu and the Ladakhis back India in the dispute, although there is a campaign in the Leh District of Ladakh to be upgraded into a separate union territory in order to reflect its predominantly Buddhist identity.
A British colony until 1997, Hong Kong remains a separate customs territory with its own legal and economic system.
Santa Cruz was part of the Patagonia National Territory from 1878 until it was made a separate national territory in 1884.
