Bing found the following results
Trucial States - Wikipedia
What Are the Trucial States? - WorldAtlas
The British Role in the Development of the Trucial States before …
Perpetual Maritime Truce - Wikipedia
United Arab Emirates summary | Britannica
The Trucial States, Iran, and the British (Chapter 5) - The Origins …
Trucial States - Wikiwand
United Arab Emirates History and Independence - ThoughtCo