Historians have documented evidence that as Germany's defeat became imminent and the Nazi leaders realized they would most likely be captured and brought to trial, great effort was made to destroy all evidence of mass extermination. In the spring of 1942, Heinrich Himmler ordered all traces of murdered Russian Jews and prisoners of war to be removed from occupied territories of the Soviet Union. As one of many examples, the bodies of the 25,000 mostly Latvian Jews whom Friedrich Jeckeln and the soldiers under his command had shot at Rumbula (near Riga) in late 1941 were dug up and burned in 1943.