The Association of Southeast Asian Nations (ASEAN) effectively united Singapore, Britain, and Japan into one market.

False

Explanation:

The Association of Southeast Asian Nations (ASEAN) is a regional economic block made up of 11 southeast Asian countries. The block's primary objectives are to promote economic, cultural, and social integration among the member countries. Members of ASEAN are  Brunei, Burma (Myanmar), Cambodia, Timor-Leste, Indonesia, Laos, Malaysia, Philippines, Singapore, Thailand, and Vietnam.

Singapore, Britain, and Japan are not members of ASEAN.   ASEAN is a regional body and Britain is not is Asian.

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