[1/4] A member of the ECOWAS regional force is seen at Denton check point in Banjul, Gambia January 22, 2017.
GROUND INVASIONECOWAS has sent troops into trouble spots before, but never in Niger and rarely with the region so divided.
Coup leaders in Guinea, Burkina Faso and Mali have expressed support for Niger's junta, and other countries have their own security challenges.
It is not clear how big an ECOWAS force would be or what form it would take.
Security analysts and diplomats have also noted apparent divisions among Niger's armed forces, who may not all be united behind the coup.
Persons:
Afolabi, Mohamed Bazoum, General Abdourahamane Tiani, Djiby Sow, Bazoum, Ikemesit Effiong, Effiong, Peter Pham, Edward McAllister, David Lewis, Emelia Sithole, Alexandra Zavis, Kevin Liffey
Organizations:
ECOWAS, REUTERS, Economic, West African States, Security, Institute for Security Studies, SPECIAL, SBM Intelligence, Nigerien, Atlantic Council, Thomson
Locations:
Denton, Banjul, Gambia, DAKAR, Niger, Guinea, Burkina Faso, Mali, Ivory Coast, Dakar, Nigeria, Niamey, U.S