1-1530
Military
Engineering, Air Forces, Air Warfare
1-620
Military
Engineering
160-302
Tactics
and Regulations
360-390
Field
Engineering
410-442
Fortifications
and Defenses, By Region of Country
443-449
Attack
and Defense, Siege Warfare
470-474
Military
Surveying, Topography, and Mapping
500-565
Technical
Troops and Other Special Corps
570-582
Military
Signaling
590-613.5
Military
Telegraphy and Telephony
622-1530
Air
Forces, Air Warfare
633-635
By
Region or Country
637-639
Education
and Training
770-1045
Organization,
Personnel Management
1100-1435
Equipment
and Supplies
1500-1530
Military
Astronautics, Space Warfare