On Friday, Egypt's defense minister Field Marshal Mohamed Hussein Tantawi
wrote on his Facebook page that he has instructed his army to immediately shoot down any military aircraft that crosses the Egyptian border.
أصدرت التعليمات بمهاجمة كل طائرة حربية تخترق الحدود المصرية والإسقاط الفورى لها
He of course wrote this while Israel was operating against rocket launchers and terrorists next door in Gaza.
(h/t אורי פלג)