U

1

-

900

Military science (General)

750

-

773

Military life, manners and customs

800

-

897

History of arms and armor

UA

10

-

997

Armies: Organization, description, facilities, etc.

Including the military situation, policy, defenses of individual countries

UB

1

-

900

Military administration

UC

10

-

780

Maintenance and transportation

UD

1

-

495

Infantry

UE

1

-

500

Cavalry. Armored and mechanized cavalry

UF

1

-

910

Artillery

UG

1

-

1530

Military engineering. Air forces. Air warfare

1

-

620

Military engineering

Including fortification, chemical warfare, signaling

622

-

1530

Air forces. Air warfare

1500

-

1530

Military astronautics. Space warfare

UH

20

-

910

Other services

Including medical and sanitary services, public relations, social welfare services, recreation