Asian Americans are those groups and individuals in North America (some prefer to expand the scope of the term to include all countries of the two Americas) who trace their ancestry back to Asia. Asian Americans by this definition include all Chinese, Japanese, Korean, Filipino, East Indian, Pakistani, Sri Lankan, Malaysian, Indonesian, Vietnamese, Cambodian, ethnic Lao, Hmong, Thai, and all other Americans with ethnic backgrounds in Asia. Many include Pacific Islanders under the rubric of "Asian Pacific Americans," so that Samoan Americans and Tongan Americans, for example, are included in the mix.