Why Boko Haram resumed bombings in Abuja, other towns

Unrelenting onslaught by the Nigerian forces against the Boko Haram insurgents in the Northeast may have forced many of the terrorists to escape the war front to seek refuge in the cities.
Sources familiar with the war, said that the three-month deadline given to the military by the President to clear the Northeast of the menace of Boko Haram, has strengthened the troops to go all out saints the insurgents.