A British person referring to an Asian will probably mean someone from the Indian sub-continent, or whose ancestors came from there. An American will probably mean someone whose roots lie further east, in the area between the Indian and Pacific Oceans (the Vietnamese, Koreans, Thais, Japanese, etc). See also Indian.
The maple leaf is a traditional Canadian emblem. Red recalls Canadian lives lost during World War I. White stands for snow. Effective date: 15 February 1965.