A map released on Monday illustrates how widespread the consequences of an escalation of the crisis in Niger might be after the deadline passed for coup leaders to reinstate the ousted president.

Soldiers in Niger executed dozens of civilians during the counterinsurgency campaign against jihadists in the country's troubled Tillaberi region earlier this year, a probe into the deaths reported.

Rebel soldiers in Niger deposed the country’s Western-allied president, Mohamed Bazoum, last week, amid a backdrop of political upheaval, a rise in Islamist extremism and growing Russian influence ...