The egypt minor is for convoying sz 97 in the long run and taking italy out of the game.
That can change when Germany (if) takes Moscow and turns towards Egypt. In my most recent game, Germany ended up taking Moscow and redirected the prior round’s purchase of Armor towards Egypt along with a Ukr Arm purchase Germany had something like 9 tanks sitting in Ukraine ready to blitz ahead of whatever survived Moscow.
UK went on the defensive at this point, but Italy was already convoyed to death with minimal effort. It really goes to show how important sinking the Italian fleet is if Germany is going to Moscow first when Italy is stuck from round 6-7 on being able to only put 1 or 2 Inf out a round at best.