Puerto Rican citizenship
In 1952, upon U.S. Congress approving the Constitution of the Commonwealth of Puerto Rico, also reaffirmed that Puerto Rican citizenship continued in full force. This was further reaffirmed in 2006 while the U.S. Senate probed into the President's Task Force on Puerto Rico's status. In 1953, U.S Ambassador Henry Cabot Lodge Jr., in a memorandum sent to the United Nations, recognized that "the people of Puerto Rico continue to be citizens of the United States as well as of Puerto Rico."
List of Puerto Ricans missing in action in the Vietnam War
Puerto Rico was officially ceded to the United States from Spain under the terms of the 1898 Treaty of Paris which concluded the Spanish–American War. It is a United States territory and upon the outbreak of World War I, the U.S. Congress approved the Jones–Shafroth Act, which granted Puerto Ricans citizenship. As a result, Puerto Ricans have participated in every war involving the United States from World War I onward.