A concerted push by Nigeria's military and neighbours Chad, Cameroon and Niger has regained considerable ground
(Fixes spelling of Kala-Balge in quote, paragraph 3)
* Nigeria, neighbours inflict several defeats on Islamists
* President Jonathan faces re-election bid in 10 days
* No sign of abducted Chibok girls, army chief says
By Felix Onuah
ABUJA, March 17 (Reuters) - The Nigerian army said on Tuesday it had repelled Boko Haram from all but three local government districts in the northeast, claiming victory for its offensive against the Islamist insurgents less than two weeks before a presidential election.
At the start of this year, Boko Haram controlled around 20 local government areas, a territory the size of Belgium, in its bloody six-year-old campaign to carve out an Islamic state in religiously mixed Nigeria.
But a concerted push by Nigeria's military and neighbours Chad, Cameroon and Niger has regained considerable ground. At the weekend, Nigerian government forces recaptured the city of Bama, the second biggest in northeasterly Borno state.
"We have three local governments remaining, Abadam, Kala-Balge and Gwoza, and we are optimistic that with time we will liberate those," Lieutenant-General Tobiah Minimah, the army chief of staff, told reporters.
President Goodluck Jonathan, who is running for re-election, had been criticised for not doing enough to tackle the insurgency. His challenger, Muhammadu Buhari, has been campaigning on his reputation for being tough on security matters when he was military ruler of Nigeria in the 1980s.
It is not clear how much impact the military advances will boost Jonathan's election chances in the tightly fought race.
The militants were progressively chased out of Adamawa and Yobe states since the start of the year, and cornered into an ever shrinking area of Borno, the heartland of their insurgency.
The elections were postponed in February until March 28, with the military citing Boko Haram as warranting the delay. The electoral commission plans to set up polling booths in camps for the more than a million Nigerians displaced by the fighting, but there are fears that potentially millions of people may be unable to vote in areas affected by the violence.
Asked whether the vote could hold in the recaptured areas, Minimah said that would be up to the electoral commission. "The areas have been liberated, but structures of governance ... will need to be reinstated so citizens can go back to their areas and (vote). How soon? I don't know."
Boko Haram's worsening atrocities against civilians hit international headlines in April last year, when the militants kidnapped more than 200 schoolgirls from the village of Chibok, triggering a search for them that has been fruitless thus far.
Minimah said there was no news on the whereabouts of the Chibok girls for now, but that the military was optimistic they would be able to get more information on it soon. (Reporting by Felix Onuah; Writing by Tim Cocks; Editing by Mark Heinrich)
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