The origin of the U.S. foreign population control efforts stems from a policy created by Henry Kissinger called National Security Study Memorandum 200. This document details the threats the U.S. domestic economy faces if third world populations were to grow. The expanding population would want to work and this would cause domestic demand for raw materials to increase; the U.S. would thereby have to pay more for imports it receives from these countries. To prevent this from happening, we actively promoted contraception, abortion, and indoctrinated children into the culture of death. Foreign aid was conditional on a state increasing its abortion rate. These policies originated under the Ford administration (another example of anti-life Republican administrations) and, unfortunately, remain our country's preference today.
Our federal government failed to see the intrinsic worth of the person and created policies to destroy life in third world countries; we formally consented to distinction between foreign and domestic citizens and thereby devalued the human person. We allowed the poor and powerless to be destroyed so that developed countries could maintain their standard of living. It is particularly painful to see the economic justification for destroying human life in our country's foreign policy. Please read the document, the links are available below.
National Security Study Memorandum (NSSM 200) (pdf version from Government Website)
National Security Council Summary
White House Summary