JNS.org – After terrorists killed more than 300 people during prayers at a mosque in Egypt’s Sinai Peninsula on Friday, experts say that weaknesses in the Arab country’s counter-terrorism operations will likely lead to increased Israeli-Egyptian security cooperation.

The terror attack, which occurred at the Al-Rawdah Mosque in the northern Sinai town of Bir al-Abed, was one of the deadliest in recent memory in Egypt. The terrorists who carried out the massacre hoisted Islamic State flags, and many attributed the attack to the region’s ISIS affiliate — Sinai Province.

Despite ongoing efforts to secure the Sinai by Egypt’s military, ISIS-affiliated terrorists have waged an insurgency in the region, perpetrating a succession of deadly attacks on Egypt’s security forces and civilians.

Last Friday’s attack “brings Israel and Egypt [closer] together,” said professor Joshua Teitelbaum, a senior research fellow at Bar-Ilan University’s Begin-Sadat Center for Strategic Studies.

“Egypt and Israel have a common goal in crushing these [terror groups] operating in the Sinai, for two reasons,” Teitelbaum said. “[Sinai-based terrorists affiliated with Islamic State] have attacked Israel in the past, mostly with mortar or rocket fire to Eilat. Israel also cares about the security of the Egyptian regime [and views it] as a bulwark of pragmatic stable countries in the region, along with Saudi Arabia, the UAE and Jordan. So Israel will do what it can to help Egyptian security.”

Egypt’s President Abdel Fattah El-Sisi declared a nationwide three-day mourning period following the attack, while the country’s air force initiated strikes to eliminate terrorist hideouts in the northern Sinai on Saturday night.

In response to the attack, Israeli Prime Minister Benjamin Netanyahu said that terrorism “will be defeated even more quickly if all countries work against it together,” while Israeli Intelligence Minister Yisrael Katz said that Israel “stands shoulder to shoulder with Egypt and other countries in the region and the international arena in the war against radical Islamic terror.”

According to Egyptian media reports, armed terrorists using all-terrain vehicles planted bombs outside of the mosque, then detonated them and opened heavy fire on more than 500 worshippers as they attempted to flee. The terrorists also set the worshippers’ vehicles ablaze and used them to block escape routes.

Experts say that the terrorists’ ability to plan and carry out such a large attack is indicative of underlying flaws in Egyptian security, intelligence-gathering and counter-terrorism efforts.

“If several terrorists can be packed in SUVs and just drive up to a mosque and start shooting at them, then the Egyptian control of the Sinai leaves a lot to be desired. Egypt has never had great control of the Sinai,” Teitelbaum said.

The attack “reflects several characteristics of the ISIS Sinai Province’s current posture,” said Assaf Orion, a senior research fellow at Israel’s Institute for National Security Studies.

“Substantial capacity to execute large-scale attacks, freedom of movement across the area of operations and a high level of operational security allowed [the terrorists] to mount a surprise attack of this scale,” Orion, the former head of the Strategic Division at the IDF General Staff’s Planning Directorate, told JNS.org. “All of these tenets may indicate possible shortcomings in the counter-ISIS efforts in intelligence, early warning and operational posture, and response on the defenders’ side.”

Experts and officials fear that the Islamic State’s recent loss of its self-declared caliphate in Syria and Iraq has prompted the terror group to turn its attention to other lawless areas of the Middle East, such as the Sinai.

Orion said that Egypt and Israel are “well aware” of the threats posed by the Islamic State’s Sinai affiliate to each country’s civilians and security forces.

“[Israel and Egypt’s] mutual commitment to stand against terrorism, secure their common border and buttress the [1979 Israeli-Egyptian] peace treaty are well-known and often declared, and severe common threats are a stimulant to stronger common responses,” said Orion.

After last Friday’s attack, Orion expects to see “heightened counter-ISIS efforts by the Egyptian Armed Forces in the Sinai, with Israel willfully concurring to Egyptian military capabilities and activities, which [were] originally limited by the peace treaty’s security annex.”

Orion added that Israel likely is already “actively coordinating with the Egyptian neighbors through their military liaison system.”

“Let’s not forget, Israel controlled the Sinai from 1967 to 1982,” said Teitelbaum. “It still has a lot of contacts there and a lot of amassed knowledge [about the area], so I’m sure it’s sharing what it knows.”

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