Why did president richard nixon authorize an american invasion of combadia in 1970

The invasion was an attempt to disrupt the North Vietnamese supply lines.

Explanation:

President Richard Nixon authorized U.S. combat troops to cross from ... Nixon authorizes invasion of Cambodia, April 28, 1970, in an attempt to disrupt the North Vietnamese supply lines.

-an amendment is proposed.

-two-thirds of congress must approve.

-thee-quarters of states must approve.

-the proposed amendment becomes law.

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