<span>President Richard Nixon’s Vietnamization policy focused on gradually withdrawing American combat troops from South Vietnam. President Nixon's plan for the gradual withdrawal of US forces is due to South Vietnamese groups expected to have more combat role. On June 8, 1969, President Nixon declared that 25 thousand U.S troops will be withdrawn by last week of August. Vietnamization aims to improve South Vietnam’s military readiness and infrastructures.</span>
Look at the image, that should answer your question. Good luck!
A. natural rights (through process of elimination, you can determine that the other principles were mentioned in the US Constitution not the Declaration of independence)
combined vertical and horizontal integration
