5 F-106's of the 71st FIS Malmstrom AFB, MT are clearly visible on the flightline known as Able 'A' and 'Delta 'D' Diamonds (A is the A-10's of the 25 FS as of 2021) at Osan AB, Republic of Korea in Jan 1969. D Diamond was actually the Alert area between A and B Diamonds and can't really be seen well in this photo as it is just off camera to the upper left. Frank Dutcher collection, submitted 25 Oct 2000