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File:US Navy 091213-N-4142G-010 Gen. David H. Petraeus, commander of U.S. Central Command, puts on a Navy ball cap during an all-hands call at Naval Support Activity Bahrain.jpg - Wikimedia Commons
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File:US Navy 110418-N-VM928-041 Master Chief Petty Officer of the Navy (MCPON) Rick D. West is presented with a command ball cap and plaque from Sailors.jpg - Wikimedia Commons
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File:US Navy 040429-N-6268K-025 Postal Clerk 1st Class Joseph Crozier sells command ball caps and shirts to Boy Scouts touring the guided missile cruiser USS Philippine Sea (CG 58).jpg - Wikimedia Commons
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U.S. Naval History on X: "It's #NationalHatDay! Let's talk Command Ball Caps! Do you still have your command cap(s)? Share a photo with us! https://t.co/9n5IBAOE9a" / X
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![171104-N-HW977-014 NORCO, Calif. (Nov. 4, 2018) Command ball caps, along with refreshments, are offered for sale during the Open House Science Experience at Naval Surface Warfare Center (NSWC), Corona Division. The event 171104-N-HW977-014 NORCO, Calif. (Nov. 4, 2018) Command ball caps, along with refreshments, are offered for sale during the Open House Science Experience at Naval Surface Warfare Center (NSWC), Corona Division. The event](https://c8.alamy.com/comp/M386Y5/171104-n-hw977-014-norco-calif-nov-4-2018-command-ball-caps-along-M386Y5.jpg)