Why is Martinique included in the Lesser Antilles island chain?

Martinique is included in the Lesser Antilles island chain because it is geographically located within the Caribbean Sea as part of the West Indies.12

The Antilles are divided into two primary groups: the Greater Antilles, which include larger islands like Cuba and Jamaica, and the Lesser Antilles, which comprise all the remaining islands in the region. As an island situated in the eastern Caribbean, Martinique falls into this latter category, positioned between its neighbors Dominica and Saint Lucia.21