Three international armies have zeroed in on Joseph Kony, one of the world's most wanted warlords, to a remote African village.
Obo was the first place in the Central African Republic that Kony's Lord's Resistance Army attacked in 2008.
Today, it is one of four forward operating locations where U.S. special forces have paired up with local troops and Ugandan soldiers to seek out Kony, who is believed likely to be hiding out in the rugged terrain northwest of the town.
For seven years he has been wanted by the International Criminal Court for war crimes and crimes against humanity after his forces cut a wide and bloody swath across several central African nations with rapes, abductions and killings.
Part of the LRA's success in eluding government forces has been its ability to slip back and forth over the porous borders of the Central African Republic, South Sudan and Congo.
But since late last year, U.S. forces have been providing intelligence, looking at patterns of movement, and setting up better communications to link the countries' forces together so that they can better track the guerrilla force.
Sent by President Barack Obama at the end of 2011, the 100 U.S. soldiers are split up about 15 to 30 per base, bringing in American technology and experience to assist local forces.
Exact details on specific improvements that the American forces have brought to the table, however, are classified, to avoid giving Kony the ability to take countermeasures.