1-D
1-down
1 UP
10-round magazine
100-round ammunition belt
12.7×99mm NATO
13-pole
180º turn / U-turn
1980 Convention on Certain Conventional Weapons (CCW, the)
1MC (general announcing system)
1st Lieutenant (1LT)
2-down
2 UP
200 round minimi ammunition pouch
2008 Convention on Cluster Munitions, (CCM, the)
200s / 200ths (KiA)
200th (KiA)
2nd Lieutenant (2LT)
3-D radar; 3D radar
30-Round magazine
300s / 300ths (WIA)
300th (WIA)
.338 Lapua Magnum (8.6×70 mm or 8.58×70 mm)
360° fixed radar
3CF (three column format 1. Factor - What; 2. Deduction, Analysis / Implication – Why; 3. Output - So What)
3D graphics editor
3D laser radar
3D model generation using the 3D graphics editor
3D model point cloud area
3D model points cloud synthesis
3PL (third-party logistics)
400th
4D logistics checklist (Destination, Duration, Demand, Distance)
4D radar
4GW (fourth-generation warfare)
.50 BMG (.50 Browning Machine Gun, 50 Browning)
50% zone
500s / 500ths
51mm mortar bandolier
550 cord
7.62 NATO cased-telescoped ammunition
70% breadth zone
8-shot lead
8-speed automatic gearbox
9-g; nine G
95th-percentile crewmember