EDSA joined mass civilian presence, military defection and constitutional reconstruction.
After two decades of Ferdinand Marcos’s rule and a disputed snap election, Defense Minister Juan Ponce Enrile, Lieutenant General Fidel Ramos and other military personnel broke with the administration and took refuge at Camps Aguinaldo and Crame.
From 22 to 25 February, large civilian crowds gathered along EDSA in support of the defectors and in opposition to Marcos. Corazon Aquino took the presidential oath on 25 February, and the Marcos family left Malacañang later that day.
The political rupture was followed by institution-building: a Constitutional Commission drafted a new charter, ratified in 1987, that restored the presidential system and bicameral Congress.
The street mobilization, elite defections and constitutional settlement were related but distinct phases. Civil resistance became durable only through the institutions built after the dramatic four days.