Initial ISIS victory Egypt Islamic State of Iraq and the Levant 44 killed (24 soldiers, 6 policemen, 14 civilians)[1] International incidents On 29 January 2015, militants from the ISIL-affiliated Wilayat Sinai (Sinai Province) militant group launched a series of attacks on army and police bases in Arish using car bombs and mortars.

[13] Parts of the Al-Arish National Museum, which holds numerous artifacts and paintings from ancient times, were destroyed during the bombings, including the main front and one of the sides of the building which later collapsed as a result.

[15][6] The Islamic State of Iraq and the Levant linked militant group Wilayat Sinai, formerly known as Ansar Bait al-Maqdis until it pledged allegiance to ISIL in November 2014,[16] claimed responsibility for the attacks on an affiliated Twitter account.

[17] Wilayat Sinai said that the incidents were part of a series of attacks that they had dubbed "We Swear We Will Revenge", which the group dedicated to "avenge for women and girls" held in government prisons.

[2] In response to the attacks, President Abdel Fattah el-Sisi, who was attending the African Union summit in Ethiopia at the time, cut short his visit and returned to Egypt.

He also hinted back at the period before the 2013 protests and ouster of Egyptian president Mohamed Morsi, claiming he had spoken with a leader of the Muslim Brotherhood who allegedly told him that people would come "from all around the world" to fight him.