Incident Summary:

11/09/2017: Assailants attacked 18th Infantry Battalion soldiers in Cabengbeng, Sumisip, Basilan, Philippines. At least six soldiers were killed and four other soldiers were injured in the incident. No group claimed responsibility; however, sources attributed the attack to the Abu Sayyaf Group (ASG).




Southeast Asia

region/u.s. state:



Location Details:
The incident occurred in the Sumisip district.

Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) Yes
Target Information (more)
Target Type: Military
Name of Entity Philippine Army (PA)
Specific Description Patrol
Nationality of Target Philippines
Additional Information
Hostages No
Ransom No
Property Damage No
Weapon Information
Type Sub-type
Firearms Unknown Gun Type
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) No
Doubt Terrorism Proper (more) Yes
Alternate Designation (more) Lack of Intentionality
Additional Information There is doubt that this incident meets terrorism-related criteria. Security forces may have been on an offensive operation which initiated the attack.
Perpetrator Group Information
Group Name Claimed Responsibility
Abu Sayyaf Group (ASG) No
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 6 Fatalities / 4 Injured
Total Number of Fatalities 6
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities Unknown
Total Number of Injured 4
Number of U.S. Injured 0
Number of Perpetrators Injured Unknown
"Abu Sayyaf kills six Filipino soldiers in Mindanao," The Gulf Today, November 9, 2017.
"PHILIPPINES TERROR - 6 Philippine soldiers killed in Abu Sayyaf ambush," EFE, November 9, 2017.
"USPACOM Web Operations Trend Report 10-16 November 2017," Summary, November 24, 2017.