Final answer:
France lost Alsace and Lorraine to Germany in 1871 due to the Franco-Prussian War, contributing to tensions before World War I.
Explanation:
Alsace and Lorraine were territories that France lost to Germany in 1871 as a result of the Franco-Prussian War. The loss of these territories fueled tensions between the two nations and played a significant role in the lead-up to World War I.
Learn more about Franco-Prussian War here:
https://brainly.com/question/30620856
