Final answer:
The question's context suggests three occupations: Adolf Hitler's role in the Nazi regime, the Jewish resistance during the Holocaust, and the Native American occupation of Alcatraz. The leaders of each, including Hitler, resistance organizers, and Native American activists, were primarily responsible for their respective occupations.
Step-by-step explanation:
The student's question appears to be truncated, making it uncertain which specific 'occupation' they are referring to. However, the context provided seems to point to the Holocaust period and the resistance against the Nazis, as well as other instances of occupation such as the Big Three's role in post-war Germany and the Native American occupation of Alcatraz Island. Given this, the three individuals who were primarily responsible for their respective 'occupations' could be: Adolf Hitler for the Nazi regime and the Holocaust; the leaders of the Jewish Combat Organization (ZOB) and other resistance organizations against the Nazis; and leaders of the Native American occupation of Alcatraz. Each of these individuals or groups played a central role in the occupations or resistances they were part of.
Adolf Hitler's leadership was pivotal for the Nazi regime, and he is often credited as the primary perpetrator of the atrocities committed during the Holocaust. Meanwhile, resistance leaders organized efforts to defend against and disrupt the Nazi occupations. The Big Three—Winston Churchill, Franklin Roosevelt, and Joseph Stalin—were instrumental in determining the fate of post-war Europe, including the occupation zones in Germany. The occupation of Alcatraz by Native American activists in 1969 exemplifies another notable stand against governmental policies, with the primary individuals involved being the activists who led and organized the occupation.