Which of the following was a difficult faced by the american military in the vietnam war?

Guerilla fighting since they were not used to that tactic and a lot of soldiers died, also the tet offensive during a holiday "truce".

I do believe it is the lack of military training.

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.

your answer would be a) no nation can be economically self-sufficient.

stay in school!