In America, the boycott of German goods was announced on March 23, 1933 as 20,000 Jews protested against Hitler's government at the City Hall in New York City. On March 27, 1933, a mass rally, that had already been planned on March 12th, was held in Madison Square Garden; there were 40,000 Jewish protesters, according to the New York Daily News. The next day, on March 28, 1933 Hitler made a speech in which he deplored the stories of Nazi atrocities that were being published in the American press and announced a one-day boycott of Jewish stores in Germany on April 1, 1933 in retaliation.
In his book From Belsen to Buckingham Palace Paul Oppenheimer tells of the events leading up to the internment of his whole family at the camp and their incarceration there between February 1944 and April 1945, when he was aged 14–15. Following publication of the book, Oppenheimer personally talked to many groups and schools about the events he witnessed. This work is now continued by his brother Rudi, who shared the experiences.
On April 21, 1945, the evacuation of the camp began. The prisoners were first deloused and then moved into the barracks of the German Army Training Center next to the camp. Two days later, 6 detachments of the Red Cross arrived to help. The epidemics had yet to be brought under control and 400 to 500 prisoners were still dying each day, but by April 28, the German guards had caught up with the burial of the bodies and the mass graves were completed.
The workers who constructed the original buildings were housed in camps near Fallingbostel and Bergen, the latter being the so-called Bergen-Belsen Army Construction Camp. Once the military complex was completed in 1938/39, the workers' camp fell into disuse. However, after the German invasion of Poland in September 1939, the Wehrmacht began using the huts as a prisoner of war (POW) camp.