Potatoes were not initially grown in europe; however, they became a staple part of the european diet by the end of the eighteenth century. which two factors were responsible for this change in diet?

Large quantities of potatoes were imported by Europe as a result of the Columbian Exchange.

Potatoes improved the European diet nutritionally.

Explanation:

Potatoes didn´t exist outside of South America before 1500. During the Columbian exchange traders brought maize, potatoes, and tomatoes to Europe, all of which became fundamental crops by the 18th century in that region.

Potatoes and maize provided caloric and nutritional improvements in Europe´s diet and generated a more diverse and rich food production.

punish germany and keep it weak,

after defeating german forces in north africa allied leaders turned their attention to "italy," since this was the location that made the most geographic sense before invading northern europe via france.