How did Cambodia get independence?

The original answer to this question is below; I have merely improved on it.

As French colonial presence became weaker in South East Asia, King Norodom Sihanouk pushed for independence, creating a revolution with the Cambodian people. The people felt pressurised by the French colonial powers and so were happy to side with the king. Independence was declared by late 1953.

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French Colonization get weaker in Asia

King Norodom Sihanouk lead the liberty and revolve for independence

Cambodian feels bloody under pressure of French colony and willing to follow new lead of former king