The White House said it will deploy troops who will be instrumental in offering intelligence, surveillance and reconnaissance operations against militant Boko Haram insurgents.
The US personnel according to Congress will not take part in combat operations and would be armed only for self-defense.
The troops will be co-ordinated into the already operational regional coalition that has tried to keep a once regional Muslim anti-colonial movement from evolving into a regional jihadist threat.
The coalition currently battling Boko Haram insurgence is made of five countries including Benin, Niger, Cameroon, Chad and Nigeria from which the terrorists stemmed.
POTUS Obama said the mission will last until US support is no longer needed.
Nine people died when one of two suicide bombers detonated a device in restaurant in the village of Kangaleri in northern Cameroon.
Like northern Nigeria, northern Cameroon is predominantly Muslim and it is also a part of the country that has historically been marginalized.
Analysis and forecast
Analysts are surprised by the US decision to deploy troops to Nigeria’s neighbor when Abuja has not received significant US military aid from the Western power.
And the US lawmakers themselves are concerned that US meddling with a terrorist group that has links with the Islamic State will only increase the severity of the situation.
There is still a possibility that the move by the US will accelerate the strength of Boko Haram by fusing the group’s ties with Middle Eastern Islamists.