B

• Bulgarian occupation of Serbia during World War I (4 P)
• Bulgarian people of World War I (2 C, 7 P)

E

• Eastern Front (World War I) (3 C, 7 P)

M

• Macedonian front (41 P)
• Military operations of World War I involving Bulgaria (1 C, 2 P)

P

• World War I prisoners of war held by Bulgaria (5 P)

S

• World War I ships of Bulgaria (1 C)

W

• World War I crimes by the Kingdom of Bulgaria (6 P)

• Bulgaria during World War I
• Template:Bulgaria in World War I

.

• Central Powers
• Mobilization of the Bulgarian Army in 1915

0–9

• 10.5 cm Kanone C/85

A

• Armistice of Salonica

B

• Balkans theatre
• Berlin Conference (August 14, 1917)
• Treaty of Bucharest (1918)
• Bulgaria–Germany treaty (1915)
• Bulgarian occupation of Albania
• Bulgarian occupation of Serbia (World War I)
• Bulgarian–Ottoman convention (1915)

E

• Eastern Front (World War I)

M

• Macedonian front
• Ostrovo Unit

N

• Negotiations of Bulgaria with the Central Powers and the Entente

O

• Ottoman–Bulgarian alliance

S

• Serbian campaign
• Serbian campaign (1915)
• Sliven prisoner of war camp

T

• Toplica Uprising

X

• XX Corps (Ottoman Empire)