The Islamic State West Africa Province killed 11 hostages and released footage of the executions on December 26.
Boko Haram militants have killed 30,000 in Nigeria people since 2009.
The attacks and deadly retaliation are threatening to eclipse Boko Haram as the top security issue leading into next year's election, analysts have warned.
"The grand corruption of our recent past saw tens of billions of dollars frittered away on fraudulent oil deals and bogus military contracts."
The spread of drone technology has allowed militant groups to build de facto air forces.
Confusion over whereabouts of schoolchildren following latest attack by Islamic militants in Nigeria.
As many as 100 of the 270 Chibok girls abducted from their school in April 2014 are still believed to be held captive by Boko Haram.
Militant groups including ISIS and Al-Qaeda are active across Africa.
The White House's decision to penalize a key counterterrorism partner in Africa may already be having negative consequences.
Boko Haram has rampaged across northern Nigeria in recent years and many people do not feel it is safe to return to their homes.
The U.S. soldiers were on a training mission with allies from Niger.
Nigeria's former first lady has accused the Buhari administration of overseeing a "witch hunt" against her and her husband.
The Nigerian military has been accused of arbitrary arrests and executions of people suspected of being members of the Islamist group.
Chad has been fighting Boko Haram and Al-Qaeda for years, but Trump says it's not playing ball with Washington.
The Nigerian militant group continues to recruit young girls to carry out suicide attacks.
Abubakar Shekau, a jihadi with a $7 million U.S. bounty on his head, continues to give Nigeria's military the slip.
Muhammadu Buhari had been in the U.K. on sick leave since May 7.
The damage is almost equivalent to the entire GDP of the U.S. island territory of Guam.
The military capability of the militant herdsmen has become increasingly sophisticated.
The dogs prevented the bombers from entering the hospital, forcing them to detonate their devices early.
Police don't believe Islamist militant group Boko Haram to be behind the attack that killed 11 people.
If vigilantes are going to continue the fight against radical Islamists, they must operate within the law.
A property owned by Jonathan was burgled recently, but only six TVs were stolen, his spokesman has said.