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.
In regard to gender issues in sub-Saharan Africa, generally speaking "<span>d. Women had more opportunities open to them than did their counterparts in other societies," although this depended slightly on the specific region and time in question. </span>
