Sinai's ISIS offshoot is most effective in Mideast, senior IDF official say

Haaretz - 7/27/2015

Wilayat Sinai is a well organized and highly skilled terrorist organization. That’s the impression senior Israel Defense Forces officers have gotten from the Islamic State-affiliated group after its string of attacks on Egyptian security forces in Sinai, culminating in a major attack near the town of Sheikh Zuweid on July 1.

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