evidence: The Comoro Islands are a group of volcanic islands in the Indian Ocean, between Madagascar and the African mainland. Three of the islands form the Union of the Comoros, a sovereign nation, while Mayotte belongs to France. [...] - Ngazidja (also known as Grande Comore): the largest island of the Union of the Comoros, with its capital Moroni - Ndzuwani (also known as Anjouan): part of the Union of the Comoros - Mwali (also known as Mohéli): part of the Union of the Comoros - Mayotte (also known as Maore): a French overseas department. Mayotte is composed of two islands, Grande-Terre and Petite-Terre (also known as Pamanzi), where the Dzaoudzi–Pamandzi International Airport is located. [...] - Mayotte, an Overseas Department of the French Republic (département d'outre-mer). This island is also claimed by the Union of the Comoros according to Article 1 of its Constitution.