-National Liberation Front (NLF) and Viet Cong (guerilla) supported by the North -Supplies sent on a route from the north through neutral countries Cambodia and Laos, and behind lines into south Vietnam. -The US refused to fight on Cambodia or Laotian territory so supplies remained safe
Summary
The North Vietnam soldiers created the Ho Chi Minh trail that cut through 2 neutral countries to get into the south, so the americans weren't able to harm supplies.