• 1918 in international relations (3 C, 22 P)
• 1919 in international relations (3 C, 18 P)
• 1920s in international relations (12 C)
• 1930s in international relations (11 C, 1 P)

-

• Aftermath of World War I (14 C, 39 P)

*

• Interwar-period treaties (15 C, 92 P)

A

• Adriatic question (3 C, 15 P)

B

• Belgian neutrality in World War II (5 P)

L

• League of Nations (7 C, 68 P)

N

• Foreign relations of Nazi Germany (6 C, 33 P)

P

• Foreign relations of the Second Polish Republic (4 C, 13 P)

R

• Reactions to the Russian Revolution and Civil War (2 C, 14 P)

S

• International reactions to the Spanish Civil War (1 C, 6 P)

W

• Foreign relations of the Weimar Republic (3 C, 5 P)