Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Socotra Archipelago' has mentioned 'Indian Ocean' in the following places:
Occurrence Sentence Text Source
[24] In April 1886, the British government, concerned about reports that the German navy had been visiting various ports in the Red Sea and the Indian Ocean to secure a naval base, decided to conclude a protectorate treaty with the sultan in which he promised this time to "refrain from entering into any correspondence, agreement, or treaty with any foreign nation or power, except with the knowledge and sanction of the British Government", and give immediate notice to the British Resident at Aden of any attempt by another power to interfere with Socotra and its dependencies.
The attitude of the South Yemeni government to the Soviet Union enabled the Soviet Navy to use the archipelago as a supply and supporting base for its operations in the Indian Ocean between 1971 and 1985.
Socotra is of particular importance to the Horn of Africaxe2x80x99s biodiversity hotspot and, as one of the most biodiversity rich and distinct islands in the world, has been termed the xe2x80x9cGalxc3xa1pagos of the Indian Oceanxe2x80x9d.