During the Cold War, in England and the U.S., it refers to the Four Middle Eastern members of the Central Treaty Organization: Turkey, Iraq, Iran and Pakistan.
Northern Ireland | Northern Territory | Northern Pacific Railway | Kimberley, Northern Cape | Northern Illinois University | Northern Cape | Northern England | WTA Tier III tournaments | Army of Northern Virginia | Northern California | Northern Italy | Royal Northern College of Music | Northern Ireland national football team | Northern | Northern Hemisphere | Northern Exposure | Northern Ontario | Northern Province | Northern Mariana Islands | Northern League | Northern Rhodesia | United States District Court for the Northern District of California | Palmerston, Northern Territory | Northern Germany | Northern Wei | Northern Ireland Assembly | Katherine, Northern Territory | Northern Ndebele people | Great Northern War | United States District Court for the Northern District of Illinois |
Interstate 81 crosses its northern tier and interchanges with 11/15 in Summerdale.
The Northern Tier programs began in 1923 with canoe trips organized by the Hibbing, Minnesota Council, and was called Region X Canoe Trails.
Marathon sold SuperAmerica to Northern Tier Energy, a newly formed company backed by the private equity firms ACON Investments and TPG Capital, in February 2011.