• World War I ships by nation (25 C)

A

• World War I military equipment of Austria-Hungary (3 C, 2 P)

C

• World War I military equipment of Canada (2 C, 4 P)

F

• World War I military equipment of France (4 C, 1 P)

G

• World War I military equipment of Germany (4 C, 3 P)

I

• World War I military equipment of Italy (3 C, 2 P)

J

• World War I military equipment of Japan (2 C)

R

• World War I military equipment of Romania (1 C, 2 P)
• World War I military equipment of Russia (3 C)

S

• World War I military equipment of Serbia (1 C)

T

• World War I military equipment of the United Kingdom (5 C, 10 P)
• World War I military equipment of the United States (5 C, 8 P)