escape, there would be a public hanging in front of the assembled prisoners. Prisoners of war were made to run up to a day with heavy packs, sometimes after being given performance-boosting drugs like cocaine, to trial military boots in tests commissioned by shoe factories. did experiments using the lethal sulfur mustard gas. There have also been allegations of an experimental drug tested upon unwilling inmates in 1944 designated "D-IX" at the Sachsenhausen facility. Designed to increase stamina and endurance, this drug, supposedly consisting of a cocktail of cocaine, methamphetamine (Pervitin), and oxycodone (Eukodal), was designed to see use from members of the Wehrmacht, Kriegsmarine and Luftwaffe to enhance mission performance where longevity and exhaustion become pertinent issues. While these drugs were used in their individual forms by all branches of the German military, the nature and use there of D-IX specifically (especially experimentation upon Sachsenhausen prisoners) lacks enough substantiation to be considered credible, though experiments by the Nazis upon unwilling prisoners utilizing psychoactive compounds is far from myth, and could hardly be ruled outside the realm of plausibility. Prisoners held or executed at Sachsenhausen Seven men of the British Army's No. 2 Commando, captured after the highly successful Operation Musketoon, were executed at Sachsenhausen. They were shot on 23 October 1942, five days after Adolf Hitler issued his commando order calling for the killing of all captured members of commando units. Four SOE agents led by Lt Cdr Mike Cumberlege RNR, who took part in the 1943 Operation Locksmith in Greece intended to blow up the Corinth Canal and were captured in May 1943, were held in Sachsenhausen's Zellenbau isolation cells for more than a year before being executed in February/March 1945. Survivors of Operation Checkmate, a 1942 commando anti-shipping operation in Norway, including their leader, John Godwin, RN, were held at Sachsenhausen until February 1945, when they were executed. Godwin managed to wrestle the pistol of the firing party commander from his belt and shot him dead before being himself shot. The Zellenbau of about 80 cells held some of World War II's most persistent Allied escapees as well as German dissidents, Nazi deserters and nationalists from East Europe such as the Ukrainian leader Taras Bulba-Borovets whom the Nazis hoped to persuade to change sides and fight the Soviets. Over the course of its operation, over 100 Dutch resistance fighters were executed at Sachsenhausen. Dutch Freemasons were also