The US president says his threat is over killings of Christians - though experts say there is no evidence they are disproportionately targeted.

President Donald Trump has warned the United States military could go into Nigeria "guns-a-blazing" to protect Christians he claimed were being slaughtered by "terrorist thugs".

Nigeria is embroiled in numerous conflicts that experts say have killed both Christians and Muslims without distinction.

Trump on Saturday said he has asked the Defense Department to prepare for possible "fast" military action in Nigeria if the West African nation fails to crack down on the killing of Christians.

In the theatre of global power, words can sometimes weigh as much as warheads. When former US President Donald Trump declared ...