Kenya Defence Forces(KDF) troops at Afmadow Airstrip after capturing the key Al Shabaab logistical base. There was no casualties among KDF and its friendly forces the Somali National Army and Ras Kamboni Brigade. Photo/FILE NATION MEDIA GROUP

October 15, 2011
Kenya declares war on al-Shabaab. Defence Minister Yusuf Haji and his Internal Security counterpart George Saitoti say military would pursue al- Shabaab across the border.

October 16, 2011,
Two Britons are arrested near the Kenya-Somalia border on suspicion of having links with al-Shabaab.

October 18, 2011
Kenya and Somalia seal pact to hit al-Shabaab.

0ctober 19, 2011
Deputy police spokesman Charles Wahongo confirms that the two Britons arrested near the Kenya-Somalia border have been deported.
October 20, 2011

Two doctors Dr Ali Omar Salim and Dr Adan Hassan Hillow are arrested at their clinic in Pumwani, Nairobi.

October 21, 2011
Dr Ali Omar Salim and Dr Adan Hassan Hillow are charged in a Nairobi court for allegedly being members of the al- Shabaab.

October 22, 2011
Reports indicate that increased vigilance along the Garissa-Thika-Nairobi highway has forced suspected al-Shabaab agents to seek out new routes to Nairobi, including passing through villages.

October 24, 2011
Two grenade attacks rock Nairobi, one at Mwaura’s Bar on Mfangano Lane and a second explosion at a crowded matatu terminus on Race Course Road, near the OTC bus stage, killing a man and injuring 28 people.
October 25, 2011
Police arrest Elgiva Bwire Oliacha alias Mohammed Saif and seize 13 grenades, an AK-47 assault rifle, four revolvers and a sub-machine gun.

October, 25, 2011
Dr Ali Omar Salim and Dr Adan Hassan Hillow, the two doctors charged with being members of Al-Shabaab, are freed on Sh200,000 bail each.

October 27, 2011
Two more al-Shabaab suspects are arrested. Police Commissioner Mathew Iteere reveals that Kenyans recruited by the al-Shabaab were responsible for the two grenade attacks that rocked Nairobi on October, 24.
October 28, 2011
Self-confessed Nairobi grenade attacker Elgiva Bwire Oliacha alias Mohammed Saif is jailed for life.

October 29, 2011
State offers amnesty to Kenyans in terror group.

November 3, 2011
Kenyan military arrest six men in Somalia on suspicion of being al-Shabaab members. Among the suspects were four Kenyans.

November 5, 2011
A grenade attack at Garissa’s Pentecostal Church leaves two people dead and five seriously injured.

November 19, 2011
Internal Security Permanent Secretary Francis Kimemia says police have arrested 60 suspected al-Shabaab militants who entered the country from Uganda en route to southern Somalia.
November 24, 2011
Four people are killed by blasts in border towns.
Three people are killed and scores wounded in twin grenade attacks in Garissa, one in Ngamia Road and the other at Chege’s Café.
Militants blow up a Kenya military truck using an improvised bomb and open fire on troops in Mandera. A soldier is killed and three others injured,

November 25, 2011
Five men suspected to be members of al-Shabaab militia group are arrested near Takwa ruins in Lamu aboard a speedboat that had been tracked from Somalia for violating the law governing Kenya’s territorial waters.