The following is a list of attacks which have been carried out by Abu Sayyaf, a militant group based in and around Jolo and Basilan islands in the southwestern part of the Philippines, where for more than four decades, Moro groups have been engaged in an insurgency for an independent province in the country.
2000 25 February – Abu Sayyaf bombers attacked Ozamiz City in Misamis Oriental.Philippines lives destroyed HRW report. 2007 23 April – Abu Sayyaf gunmen raid the Malaysian diving resort of Sipadan, off Borneo and flee across the sea border to their Jolo island stronghold with 10 Western tourists and 11 resort workers. 27 May – The kidnappers issue political demands including a separate Muslim state, an inquiry into alleged human rights abuses in Sabah and the restoration of fishing rights. They later demand cash multimillion-dollar ransoms. 1 July – Filipino television evangelist Wilde Almeda of the Jesus Miracle Crusade (JMC) and 12 of his follsited the Abu Sayyaf headquarters. A German journalist is seized the following day. 9 July – A three-member French television crew was abducted. 27 August – French, South African and German hostages are freed. 28 August – United States Muslim convert Jeffrey Schilling is abducted. 9 September – Finnish, German and French hostages are freed. 10 September – Abu Sayyaf raids Pandanan island near Sipadan and seizes three Malaysians. 16 September – The government troops launch military assault against Abu Sayyaf in Jolo. Two kidnapped French journalists escape during the fighting. 2 October – JMC Evangelist Wilde Almeda and 12 "prayer warriors" were released. 25 October – Special Malaysian Troops rescue the three Malaysians seized in Pandanan.
2001 12 April – Jeffrey Schilling is rescued, leaving Filipino scuba diving instructor, Roland Ullah, in the gunmen's hands. 22 May – Suspected Abu Sayyaf gunmen raid the luxurious Pearl Farm beach resort on Samal island in southern Philippines, killing two resort workers wounding three others, but no hostages were taken. 28 May – Suspected Abu Sayyaf gunmen raid the Dos Palmas resort off the western Philippines island of Palawan and seize 18 hostages including a United States couple and former Manila Times owner Reghis Romero. Arroyo rules out ransom and orders the military to go after the kidnappers. 29 May – Malacañang imposes a news blackout in Basilan province where the Abu Sayyaf are reported to have gone. 30 May – United States Department Spokesman Philip Reeker calls for the "swift, safe and unconditional release of all the hostages." An Olympus camera and an ATM card of one of the hostages are found in Cagayan de Tawi-Tawi island. Pictures of Abu Sayyaf leaders are released to media by the Armed Forces of the Philippines. 31 May – The military fails to locate the bandits and hostages despite search and rescue operations in Jolo, Basilan and Cagayan de Tawi-Tawi. 1 June – Military troops engage Abu Sayyaf bandits in Tuburan town in Basilan. Abu Sayyaf spokesman Abu Sabaya threatens to behead two of the hostages. 2 June – Abu Sayyaf invaded Lamitan town and seize the José Maria Torres Memorial Hospital and the Saint Peter's church. Soldiers surround the bandits and engage them in a day-long firefight. Several hostages, including businessman Reghis Romero, were able to escape. Witnesses say the bandits escape from Lamitan at around 5:30 in the afternoon, taking four medical personnel from the hospital. 3 June – Soldiers recover the decapitated bodies of hostages Sonny Dacquer and Armando Bayona in Barangay Bulanting. 4 June – Military officials ask for a state of emergency in Basilan. President Gloria Arroyo turns the request down. 5 June – At least 16 soldiers are reported killed and 44 others wounded during a firefight between government troops and Abu Sayyaf members in Mount Sinangkapan in Tuburan town. President Arroyo promises 5 million pesos to the family of retired Col. Fernando Bajet for killing Abu Sayyaf leader Abu Sulayman on 2 June 2000. Abu Sayyaf leaders contact a government designated intermediary for possible negotiations. 6 June – Abu Sayyaf leader Abu Sabaya tells Radio Mindanao Network that United States hostage Martin Burnham sustained a gunshot wound on the back during a recent exchange of gunfire.
2002 21 July – A provincial governor and three others were wounded when fighters of the Abu Sayyaf ambushed them in the southern Philippines, the military said. August – Six Filipino Jehovah's Witnesses were kidnapped and two of them were beheaded. 2 October – One American serviceman was killed and another seriously injured by a bomb blast in Zamboanga City.
2003 12 February – The Philippines expelled an Iraqi diplomat, accusing the envoy of having ties to the Abu Sayyaf terrorist group. Second Secretary Husham Husain has been given 48 hours to leave the country, according to a statement by Philippine Foreign Secretary Blas Ople. The government said it had intelligence that the Iraqi diplomat has ties to the Islamic extremist group. The decision was taken more than a month before the 2003 invasion of Iraq. 5 March – Abu Sayyaf claimed responsibility for the bombings in Francisco Bangoy International Airport in the southern Philippines, killing 21 and injuring 148.
2004 24 February – A bomb explodes on SuperFerry 14 off the coast of Manila, causing it to sink and killing 116 people. This attack is the worst terrorist attack at sea. 9 April – A key leader of the Islamic terrorist group Abu Sayyaf was killed, along with five of his men, during a gun battle with government troops in the southern Philippines. Hamsiraji Marusi Sali and his men were killed when a platoon of the Philippine Army's elite Scout Rangers, who had been on the terrorists' trail, attacked them around midday on the island of Basilan, an Abu Sayyaf stronghold about 885 kilometres, or 550 miles, south of the capital, Manila. Four government soldiers, including the commanding officer Noel S. Buan, were injured. 10 April – Around 50 prisoners including many suspected members of the Abu Sayyaf escaped from jail in the southern Philippines, the officials said. Three of the escaped prisoners were later killed and three others have since been recaptured, while three jail guards were wounded in the incident on the island of Basilan. They still did not have a full headcount of those who escaped, but local army commander Colonel Raymundo Ferrer said 53 of the 137 prisoners in the jail on the outskirts of Isabela City had broken out.
2005 14 February – The Valentine's Day bombings took place in three major cities of the Philippines namely; Makati, Davao City and General Santos. The incidents claimed numerous lives (including children), injuries and big amount of damaged properties. Immediately after an hour there was a claimed coming from the Abu Sayyaf Chieftain Khadaffy Janjalani and Abu Solaiman via media interview that the bombings were the terrorists' Valentines gift to President Gloria Macapagal Arroyo and to the citizenry to praise their belief. This was recorded as terrorist attack that caused the biggest downfall effects in the Philippine economic history in terms of tourism industry, foreign investors and socioeconomic undertakings of the people. The issuance of travel advisories from numerous nations was paramount after the incident. 15 March – Several Abu Sayyaf top leaders attempted to escape from the Camp Bagong Diwa in Bicutan, Taguig City. They killed 4 government soldiers in revenge of killing his 2 men. They barricaded the Special Intensive Care Area (SICA) compound. This started the Bagong Diwa siege. 29 hours later, the Special Action Force of the Philippine National Police sieges the compound, killing 22 men, including its leaders. 17 November – A prominent leader of the Islamist group Abu Sayyaf, Jatib Usman, has been killed in ongoing clashes between rebels and the military. Usman was confronted in the most southeastern province of Tawi-Tawi, an island region which is close to the Borneo coast of Malaysia.
2006 3 February – Suspected Abu Sayyaf gunmen knocked on the door of a farm in Patikul, Mindanao and opened fire after asking residents if they were Christians or from another religion. Six people are confirmed dead, including a nine-month baby girl and five others are seriously wounded. 20 March – Declassified documents seized from Saddam Hussein's government were said to have revealed that Al-Qaeda agents financed by Saddam entered the Philippines through the country's southern backdoor. 19 September – A Filipino Marine officer was killed after the government forces encountered a large group of Abu Sayyaf terrorists earlier day in the outskirts of Patikul town in Sulu, southern Philippines, a military official reported. Five Marine soldiers also were wounded in the clash with some 80 terrorists believed to be led by Abu Sayyaf leader Radullan Sahiron, alias commander Putol, one of the top terrorist leader based in Sulu province, said the spokesman.
2007 17 January – Abu Sayyaf leader, Abu Sulaiman is killed in a gun battle against the Philippine Army in Jolo. 11 July – Eight Filipino government soldiers were killed, nine others injured and six missing following a gun battle against Abu Sayyaf soldiers, supported by armed villagers in the southern island province of Basilan, according to a military source. 9 August – The military said it lost 26 soldiers and killed around 30 militants in three days of fighting on the volatile island of Jolo, in the beginning of month. The heaviest toll occurred after militants ambushed a military convoy.
2008 17 January – Abu Sayyaf militants raided a convent in Tawi-Tawi and killed a Catholic missionary during a kidnapping attempt. 14 February – Failed assassination plot of the President of the Philippines, Gloria Arroyo. 8 June – ABS-CBN Journalist Ces Drilon and her TV Crew kidnapped. 10 days later they were released after families paid a portion of the ransom. 23 September – A mid-level leader of the Abu Sayyaf group and a follower surrendered to the Marine Battalion Landing Team-5 (MBLT-5) in Sulu province. Colonel Eugenio Clemen, chief of the 3rd Marine Brigade, identified the bandits who surrendered as Hadjili Hari and Faizal Dali, his son-in-law.
2009 15 January – Three Red Cross officials, Swiss Andreas Notter, Filipino Mary Jane Lacaba and Italian Eugenio Vagni were kidnapped. Andreas Notter and Mary Jane Lacaba were released four months later. Eugenio Vagni was released six months later on 12 July. 14 April – Abu Sayyaf militants executed Cosme Aballes, one of two hostages they took during a raid on a Christian community in Lamitan City in Basilan on Good Friday, the military said. The bandits were with members of the Moro Islamic Liberation Front (MILF) and of kidnap for ransom groups. Aballes and Ernan Chavez were taken by at least 40 Abu Sayyaf, rogue Moro National Liberation Front (MNLF) rebels and KFR elements when they raided Sitio Arco in Lamitan City. On their way out, the kidnappers shot dead a resident, Jacinto Clemente. 18 May – Abu Sayyaf militants in Basilan beheaded a 61-year-old man who was abducted from this city about three weeks before, the police said. 12 July – The Italian Red Cross hostage, Eugenio Vagni, was released. 12 August – A group of Abu Sayyaf militants and members of the MNLF ambushed a group of AFP (Armed Forces of the Philippines) soldiers as they conducted a clearing operation in the mountains of Tipo-Tipo, Basilan. 23 AFP soldiers were killed in the engagement, 20 of which were members of the Philippine Marines Corps. In addition, 31 Abu Sayyaf militants were killed in an initial body count. 20 September – The AFP took an Abu Sayyaf camp at Sitio Talibang, Brgy Buansa, Indanan, Sulu. 21 September – AFP overran a camp in Sitio Talatak, Brgy Bato-Bato, Indanan, Sulu belonging to the Abu Sayyaf, killing nearly 20 militants. 5 soldiers were wounded.