Adolf Hitler and the Nazi Party rose to power with an ideology of national and racial superiority. As the Nazis deepened their control over Germany in the 1930s, they implemented policies and passed laws that stigmatized and persecuted many groups of people that they considered to be outsiders and enemies of Germany, including Jews, political opponents, homosexuals, and Roma and Sinti people. Violence against Jews and their property was on the rise. During Kristallnacht in 1938, synagogues, businesses, and homes were burned and thousands of Jews were interned for varying periods of time in concentration camps.
Until 1941, official German policy encouraged Jews to leave the country by making life in Germany increasingly difficult for them. Jews were forbidden from working in certain professions and renting or owning homes in many places; they could not hold on to their financial assets and could not move freely. These policies, together with a campaign of hateful antisemitic propaganda and an increasingly violent climate, made life in Germany impossible for many Jews.
The United States acquired Puerto
Rico from Spain during the Spanish American war. Now that they have the island,
Washington had the problem of governing it. Washington sent generals to first
govern the country. However, some of these military guys were accustomed to
brutal administration and pacification of Native Americans. Many occupying American
soldiers were also bad guys, mistreating local residents and causing fights. The
ruling government was undemocratic, causing civil disorder in the island.
Here is the answer all in one
You are correct the U.S., Canada, Cuba & the U.K. even returned them to germany