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."
Vicente Balbás Capó
Balbás Capó was among a group of 229 Puerto Ricans who, at the time of the imposition of American citizenship on Puerto Ricans in 1917, campaigned to reject the imposition of American citizenship and protested the American citizenship by failing to register for the American military service as required by Federal law.