Foreign policy grp.

NSC

This U.S. council advises the president on national security matters and includes top officials like the secretary of state. It was formally established after World War II.

"Foreign policy grp." is short for a U.S. government group that handles national security and international affairs. The answer "NSC" stands for the National Security Council, a key advisory body to the president on foreign policy and defense matters. The clue uses "grp." as a common crossword abbreviation for "group," keeping it concise while pointing to a well-known acronym.