If an army has a policy of institutionalized rape of minority groups, this is an internal affair of that country. Outside nations should respect the right of soldiers to rape minority women. Ethnic cleansing has happened in the past. We did not stop it then. We should not stop it now.
Governments have the right to ethnically clean without international interference.
FDR's Four Freedoms speech was mere propaganda and posturing, with no real moral values or policy statement intended or implied. The rights to life, liberty and the pursuit of happiness are values entirely unique to the United States of America. Assisting others abroad that are seeking happiness, seeking liberty or attempting to prolong their own lives is a gross and entirely immoral interference with outside cultures. The international treaties of human rights signed after World War II were never enforced, cannot now be enforced, should never be enforced, and shall never be enforced. Military force should be used only to secure the vital interests of the Unites States.