In late 1942, German forces were defeated in the second battle of El Alamein, thwarting Hitler's plans to seize the Suez Canal and the Middle East. Overconfident in his own military expertise following the earlier victories in 1940, Hitler became distrustful of his Army High Command and began to interfere in military and tactical planning, with damaging consequences. In December 1942 and January 1943, Hitler's repeated refusal to allow their withdrawal at the Battle of Stalingrad led to the almost total destruction of the 6th Army. Over 200,000 Axis soldiers were killed and 235,000 were taken prisoner. Thereafter came a decisive strategic defeat at the Battle of Kursk. Hitler's military judgement became increasingly erratic, and Germany's military and economic position deteriorated, as did Hitler's health.