After the franco-prussian war, why did germany form alliances and start to build up its military?
germany wanted to invade italy to unite germans living within italy.
germany wanted to annex belgium to unite germans living in belgium.
germany feared that great britain would form an alliance with france.
germany feared that france wanted to recapture alsace and lorraine.

Germany feared that France wanted to recapture Alsace and Lorraine.

Explanation:

The Franco-Prussian War was fought between the Second French Empire and the Kingdom of Prussia over the extension of the German territory. The war came to an end with the sign of the Treaty of Frankfurt in 1871 which gave Germany the French territories of Alsace and Lorraine.

France wanted its territories back so, because of the fear of another Franco-Prussian War is that Germany started to build up its military.

It was a key conflict for what it would come later, World War I.

I hope this answer helps you.

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

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explanation: