Mangudadatu was challenging Competition Datu Unsay mayor Andal Ampatuan Jr. , son of the incumbent Maguindanao governor Andal Ampatuan Sr. and member of one of Mindanao 's leading Muslim political clans , in the forthcoming Maguindanao gubernatorial election Choosing , part of the national elections Choosing in 2010 .

The Mindanao bombings Attack was a series of seemingly unrelated bomb attacks Attack that took place Process_start on July 4 , 5 , and 7 , 2009 in the towns of Datu Piang and Jolo , and the cities of Cotabato and Iligan in Mindanao , Philippines .

The 2013 Lahad Datu standoff Hostile_encounter ( also known as the Lahad Datu incursion Attack ) was a military conflict Hostile_encounter that started Process_start on 11 February 2013 and fully ended Process_end on 24 March 2013 .

The 2013 Lahad Datu standoff Hostile_encounter ( also known as the Lahad Datu incursion Attack ) was a military conflict Hostile_encounter that started Process_start on 11 February 2013 and fully ended Process_end on 24 March 2013 .

The conflict Hostile_encounter began Process_start when 235 militants , some of whom were armed Giving , arrived Arriving by boats in Lahad Datu District , Sabah , Malaysia from Simunul island , Tawi-Tawi , in the southern Philippines .

Malaysian security forces surrounded Surrounding the village of Tanduo in Lahad Datu , where the group had gathered Come_together and , after several weeks of negotiations Communication and deadlines for the intruders to withdraw Removing , especially after the killing Killing of Malaysian police members , launched Process_start a major operation Military_operation to flush Emptying out the militants .