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Bulgaria joins Germany and Austria-Hungary in their invasion of Serbia

On one bank of a river, dismayed French, Russian, Italian, and British soldiers watch 'Bulgaria' drift from its broken Russian leash to the opposite bank where German, Austrian and Turkish soldiers express satisfaction and delight. The 'river' leads, in the distance, to Istanbul. Still held by British tethers (and moneybag) are Greece and Romania.
Text:
Bulgarian title:
ЧЕТВОРНИЯ СЪЮЗЪ
Quadruple Alliance
E. A. Schwerdtfeger & Co. A.G. Berlin N. 85

On one bank of a river, dismayed French, Russian, Italian, and British soldiers watch Bulgaria drift from its broken Russian leash to the opposite bank where German, Austrian and Turkish soldiers express satisfaction and delight. The river leads, in the distance, to Istanbul. Still held by British tethers (and moneybag) are Greece and Romania.

Image text

ЧЕТВОРНИЯ СЪЮЗЪ

Quadruple Alliance

E. A. Schwerdtfeger & Co. A.G. Berlin N. 85

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Without a prior declaration of war, Bulgaria joins Germany and Austria-Hungary in their invasion of Serbia, attacking Serbia from the east. The Germans and Austro-Hungarians had begun their invasion on October 5.

Bulgaria invaded Macedonia on October 11, driving back French General Maurice Sarrail, trying to advance up the Vardar.

1915-10-14