Nigeria: Concern grows over President Buhari's absence
Nigeria's President Muhammadu Buhari is in his second month of medical leave.
He's being treated for an undisclosed medical condition in London but his absence has caused a lot of concern, with opponents calling for his resignation.
US President Donald Trump is planning to increase military spending by nearly 10 percent. The US is already the world's biggest spender on defence, but Trump's first budget is said to include an extra $54bn.
Police in Somalia are playing an important role in preventing attacks by al-Shabab, the armed group opposed to the Somali government.
The country's new president Mohamed Abdullahi Farmajo says one of his priorities is to reform the security sector.
Will Trump's border wall stop undocumented workers?
The administration of US President Donald Trump wants to tackle illegal migration and has focused efforts on those coming through the border with Mexico.
But there are many groups who go unnoticed.
Al Jazeera's Gerald Tan explains.