Answer:
Had trouble finding attackers in the dense jungles.
Explanation:
Often, the Viet Cong would use guerilla warfare against the americans, they also hid underground and made secret villages.
Answer:
Aldous Manutius
Explanation:
https://en.wikipedia.org/wiki/Aldine_Press
Henry Kissinger served as secretary of state under President Richard Nixon.
Hope this helps. :)