it usually means war or proudness. That's why it's mostly red.
The red on the flag actually symbolizes Communism and is common in most communist countries.
it symbolize the states
The Chinese national flag consists of 5 yellow stars on the upright corner of a red field. The largest star symbolizes the Communist Part of China while the other four smaller ones symbolize various classes of people in China.
A moon and a star symbolize the Pakistani flag.
freedom
There's no yellow on the Chinese flag
actually, that's not the Chinese flag is the Turkish flag!
each state
The 13 colonies
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The u.s. flag has 13 stripes - which symbolize the original 13 states, which were subsequently fragmented into the current 52.
The Chinese flag signifies the unification of the different races in the country. The big yellow star represents the majority Han people, the four small stars represent the other minority ethnic races.