JOIN USA chronology of Naxal attacks on security forces in the country in the past five years.
June 29, 2008: Maoists attack a boat on Balimela reservoir in Odisha carrying four police officials and 60 Greyhound commandos, killing 38 troops.
July 16, 2008: 21 policemen killed when a police van is blown up in a landmine blast in Malkangiri district of Odisha.
April 13, 2009: 10 paramilitary troops killed in eastern Odisha when Maoists attack a bauxite mine in Koraput district.
April 22, 2009: Maoists hijack a train with at least 300 people on board in Jharkhand and force it to Latehar district before fleeing.
May 22, 2009: Maoists kill 16 policemen in the jungles of Gadchiroli district in Maharashtra.
June 10, 2009: Nine policemen, including CRPF troops and officers, ambushed by Maoists during a routine patrol in Saranda jungles in Jharkhand.
June 13, 2009: Naxals launch two landmine and bomb attacks in a small town close to Bokaro, killing 10 policemen and injuring several others.
June 16, 2009: Maoists kill 11 police officers in a landmine attack followed by armed assault. In a separate attack, four policemen killed and two others seriously injured when Maoists ambush them at Beherakhand in Palamau district.
June 23, 2009: A group of motorcycle-borne armed Naxal rebels open fire on Lakhisarai district court premises in Bihar and free four of their comrades including the self-style Zonal Commander of Ranchi.
July 18, 2009: Naxalites kill a villager in Bastar and in a separate incident torch a vehicle engaged in road construction work in Bijapur district of Chhattisgarh.
July 27, 2009: Six persons killed when Naxals trigger a landmine blast at Dantewada district in Chhattisgarh.