Complex sentence: Unnamed jihadist group; attack on international troops at a base in the Egyptian Sinai; perimeter was breached and four soldiers wounded in the attack; reportedly, before they exited, the attackers hoisted a black al-Qaeda flag over the base.
Split into simpler sentences: Unnamed jihadist group; attack on international troops at a base in the Egyptian Sinai. Reportedly, before they exited, the attackers hoisted a black al-Qaeda flag over the base.