Which country among the following was not a part of the Third Coalitio

Which country among the following was not a part of the Third Coalition against Napoleon ?

Russia
Prussia
Sweden
France
This question was previously asked in
UPSC NDA-2 – 2019
The correct option is D) France.
The Third Coalition (1805) was formed by several European powers including Great Britain, Austria, Russia, Naples, and Sweden *against* the First French Empire under Napoleon I. France was the primary opponent of the coalition, not a member of it.
Prussia remained neutral initially during the Third Coalition but joined the Fourth Coalition (1806-1807) after Napoleon’s victories. The Third Coalition was dissolved after Napoleon decisively defeated Austria and Russia at the Battle of Austerlitz in December 1805.