Final answer:
Collective nouns are used to refer to groups as a single unit. In this case, 'fleet' is the suitable collective noun for 'large number of ships.'
Explanation:
Collective nouns are nouns used to refer to groups as a single unit. In this case, the suitable collective noun to replace 'large number of ships' would be fleet. So, the sentence would be: The Kenya Defense Force operates a fleet of ships.
Learn more about Collective Nouns in English Grammar here:
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