What made the vietnam war so difficult?

Mostly the fact that we weren't equipped to fight against North Vietnam. Their military was very well trained and equipped. If I remember correctly, we actually withdrew from the war because we couldn't fight off the Northern soldiers.

There was one incident when we were going around NV to get to SV with our navy, and NV's navy attacked our ships. I think that probably contributed because we would've had trouble getting our Navy to SV.

But the first statement was the most difficult part, from what my lessons said at least.

Mostly the fact that we weren't equipped to fight against North Vietnam. Their military was very well trained and equipped. If I remember correctly, we actually withdrew from the war because we couldn't fight off the Northern soldiers.
There was one incident when we were going around NV to get to SV with our navy, and NV's navy attacked our ships. I think that probably contributed because we would've had trouble getting our Navy to SV.

Ghana, first of the great medieval trading empires of western africa (fl. 7th–13th century). it was situated between the sahara and the headwaters of the sénégal and niger rivers, in an area that now comprises southeastern mauritania and part of mali.