Letter from WSC to General [Claude] Auchinleck [Commander-in-Chief Middle East] criticising [Air Marshal Sir Arthur] Tedder's [Air Officer Commanding in Chief, RAF, Middle East] estimate of strength; looking forward to receiving news of Operation Crusader as "the whole immediate future of the war" depends on it; and suggesting that although troops are preparing for Norway they could easily be diverted to Africa if necessary. [copy].