In 1917, Germany, determined to win its war of attrition against the Allies, announced the resumption of unrestricted warfare in war-zone waters. Three days later, the United States broke diplomatic relations with Germany, and just hours after that the American liner Housatonic was sunk by a German U-boat.
Naval supplies were obtained from the Hessians.
1.) Labour
2.) Produced pretty much all of America's exports.
Answer:
The most important factor in explaining the Spanish victory over the Aztecs and Incas in the 16th century is devastating loss of life caused by European-borne diseases mainly in devastating loss of Indian life caused by smallpox
Explanation:
