The National Alliance in Support of Legitimacy – the coalition supporting ousted Islamist president Mohamed Morsi, led by the Muslim Brotherhood – has called for a week of protests, dubbed the 'Eid of Martyrs', to commence on Friday.
The alliance said the protests should mark the Muslim Eid holidays, marking the end of the holy month of Ramadan, which start on Sunday with demonstrations across the country.
The alliance's calls for protests have been regular since the bloody dispersal of its main sit-in by police in August 2013, but the magnitude of demonstrations has greatly diminished since.
A statement by the alliance published on Wednesday accused the authorities of conspiring against Palestinians being attacked in Gaza, saying the main purpose of the "military coup" was serving Israel and against the resistance.
Egypt has been repeatedly criticised for closing its Rafah border with Gaza. Authorities have allowed few injured Palestinians into Egypt for medical treatment. The army sent 500 tonnes of medical and food aid days after Israeli bombs pounded the Strip.
The alliance called for demonstrations in front of the houses of dozens of Morsi supporters killed during clashes with police at the Memorial of the Unknown Soldier in east Cairo in July 2013.
"Egypt needs anger that will crush the enemies of the people and the nation," the statement read. "The real feast is when the truth prevails and the coup and tyranny and the occupation are defeated, and retribution for the martyrs is achieved."
Morsi was ousted in a popularly backed move by the Egyptian army led by now-President Abdel-Fattah El-Sisi after mass protests against the former in July 2013.
Governments have since cracked down against the Brotherhood who rejected the move, describing it as a coup against an elected president.
Hundreds have been killed in protests and thousands – tens of thousands by some estimates – are imprisoned for being members or supporters of the Brotherhood – officially deemed a terrorist organisation by the authorities – or protesting.
aMilitants have taken up arms against the security forces since Morsi's ouster, killing hundreds of police and army officers and personnel.