Fighting in the Sinai occurs almost on a weekly basis and military activity is carried out on a semi-daily basis. The result may alter the formula in governing the Egyptian capital, and it may also alter it in Gaza. Sinai's war is between the Egyptian armed forces and the Egyptian armed opposition which appears like a new player or term.
One of the factors that led to losing control over the Sinai during the era of Hosni Mubarak is that he overlooked Hamas' smuggling operations and the construction of tunnels.Abdulrahman al-Rashed
The clear aim of transferring the battle to the Sinai, which is very far from Cairo, is to exhaust the army institution, topple it and/or to impose a political solution that brings back the Brotherhood to government. Jihadi groups' statements and the Brotherhood leaders' statements terrorized some Western governments which voiced their opposition of toppling the Brotherhood's governance and their fear that waves of terrorism and violence may not only target Egypt but the West as well.