The airforce has been doing a tremendous job on the western front with the vermins coming in from Libya. They've spent (my guess) over $1 billion on weapons and flight hours in the past year alone, to the point where they're using WingLoong UCAVs, Apaches and now armed Tractor aircraft to reduce the strain and cost on the F-16 fleet. We have appx 232 F-16s and they're even using the latest blk 52's because of their terrific ground attack abilities and have lost one of the 20. They're even building a new air base in the western desert specifically for the Libyan infiltration. And 3 new naval bases also. So they're trying.
Sinai is a whole other problem because it presents 2 major dilemmas. 1 is the army can't show too much of a presence because frankly that scares away tourism which is a huge element of Egypt's economy and 2nd, our peace treaty with Israel restricts the military presence there. With that said, even, they've been executing raid after raid in Sinai and have had great results for the last few months, major improvements but these cells are very difficult to weed out and especially suicide bombers when they come in the worst type possible in a VBIED, even a lone SB is very difficult to prevent. It's a tough thing.