Final answer:
Dominica is the country located between Guadeloupe to the north and Martinique to the south, situated in the Lesser Antilles of the Caribbean Sea.
Step-by-step explanation:
The country with Guadeloupe to the north and Martinique to the south is Dominica. It is part of the Lesser Antilles in the Caribbean Sea. The island of Dominica is situated between these two French overseas departments and is known for its lush, mountainous terrain and rich cultural heritage.
The Caribbean region is host to various islands, some of which are territories or departments of distant countries. For example, Guadeloupe and Martinique remain departments of France, reflecting the legacy of European colonialism in the Caribbean.