The Egyptian military has given Egyptian President Mohamed Morsi until Wednesday to lay down a political roadmap for his country and settle differences with opposition leaders.

Morsi has rejected the military deadline as Morsi’s Muslim Brotherhood criticized the army’s approach.

The military has vowed to suspend Egypt’s constitution and dissolve the Islamist-dominated parliament by Wednesday if no solution is forthcoming from Morsi.

At least 16 people have died in protests that over three million people have taken part in the past days. Sunday’s demonstrations were the largest since the 2011 revolution that toppled former Egyptian President Hosni Mubarak from power.

The Tamarod movement is promising larger demonstrations and civil disobedience if Morsi does not step down by 5 pm Tuesday.

Egyptian armored vehicles have moved to the border near the Gaza Strip in expectation of increased militant activity as the clock ticks down on Morsi. It has coordinated those military movements with Israel. The increased militant activity will come in the form of Islamic extremists and Palestinian militants infiltrating from the Gaza Strip through tunnel networks.

After protesters ransacked the Muslim Brotherhood’s headquarters, the Brotherhood is considering action to defend itself against further attacks.

An intervention by the military in Egypt will begin anew the over 60-year power struggle between Islamists and Egypt’s military.