The correct answer is <span>H.o Chi Minh began supplying and supporting communists in the south.
H.o Chi Minh started sending support to communists in the south with the goal being to fight in the south against each other while he was pressuring the south from the north. When the US realized this, they sent military envoys to help with equipment and advisers who would train southern soldiers and this escalated the war.</span>
<span>This is of course somewhat of a subjective question, but in general most would agree that in general expansion was not justifiable since the Mexicans and Natives were doing nothing to provoke the US. One could argue it was justifiable since Americans needed more land. </span>
Answer:
article 5in the u.s constitution
