Explanation

 SEATO is the Name of the pact joined by Pakistan and the United Kingdom In 1954 and dissolved on 30th June 1977

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On 8th September 1954, the Southeast Asia Treaty Organization, or SEATO formed by :

1. the United States,
2. France,
3. Great Britain,
4. New Zealand,
5. Australia,
6. the Philippines,
7. Thailand,
8. and Pakistan 

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while the Central Treaty Organization (CENTO) was formed in 1955 by nd dissolved in 1979.

:

1. Iran,
2. Iraq,
3. Pakistan,
4. Turkey,
5. and the United Kingdom 

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ND05-12-2022