Naval Mobile Construction Battalion TWENTY-ONE
NMCB 21
"Blackjack Battalion"
References
- New York City Honors NMCB 21 Seabees With 'Freedom Award' Navy NewsStand 11 Jul 2005
- NMCB 21 Seabees Commemorate 63rd Anniversary Navy NewsStand 30 Mar 2005
- NMCB 21 Seabees Shine at "Bearing Duel" Field Exercise Navy NewsStand 22 Mar 2005
