There were several attempted military coups to dislodge the Aquino government from 1986 to 1991, which more often than not involved Marcos loyalists in the military and civilian bureaucracy. At least two of these attempts had the explicitly stated goal of restoring Marcos or at the very least a Marcos ally to the presidency.

The first attempt was made on 6 July 1986, when 490 soldiers and 5,000 Marcos loyalist civilians, many of whom were former officials of the Marcos regime, seized and occupied the Manila Hotel. Arturo Tolentino, Marcos's running mate during the February snap elections, took his "oath of office" as acting President on behalf of Marcos and declared the hotel as a "temporary" seat of government. A hotel executive also managed to record a congratulatory telephone call to Tolentino from Marcos who was still in Hawaii. Government troops instituted a blockade, and after 37 hours loyalists were quietly evacuated and rebel soldiers made to surrender, with no casualties.

The second attempt was not actually attempted due to the fact it was discovered before anything really happened. In July 1987, PCGG Chairman Ramon Diaz exposed at a press conference taped conversations that Marcos had with a French businessman and one of his former attorneys in Hawaii. In the tapes, Marcos stated his intentions to buy rifles, tanks and Stinger missiles from Europe; and to use Tonga as a staging ground for a land invasion in Luzon. Marcos did not deny the veracity of the tapes' contents, but instead claimed it would have only been carried out upon an imminent communist takeover of the government. A week later, several military officers under investigation claimed that meetings had taken place in Makati to discuss a provisionary government and the pledging of armed men to the effort. Ultimately, no one was arrested or charged.

These, however, were far from the most serious attempts to overthrow the Aquino government. Most of my post was paraphrased from the 1990 Davide report, the authoriative source on the matter.