http://www.onwar.com/chrono/1941/jul41/f31jul41.htm
Nazis seeking “final solution” for Jews
Thursday, July 31, 1941 www.onwar.com
In Berlin... Goring orders Heydrich to make “all necessary preparations... for bringing about the complete solution of the Jewish question.”
On the Eastern Front... German 16th Army, part of the German Army Group North, continues the advance reaching the south side of Lake Ilmen. In southern Finland, Finnish attacks toward Viipuri and Vuosalmi begin.
In North Africa... The Axis forces are reorganized. General Cruewell now command the German Afrika Korps (DAK) with Rommel in charge of the new Panzer Group Africa. The 5th Light Division is renamed as 21st Panzer Division and Rommel, therefore, has two panzer divisions and one German infantry division in his force. In addition there are seven Italian divisions.
In the Mediterranean... There is a small British supply operation launched from Gibraltar to Malta.
In Washington... Roosevelt establishes the Economic Defense Board under Vice-President Wallace.