DRC soldiers/police get peanuts as salary if they are lucky - the more usual case money has disappeared in someones else pocket. Unsurprisingly that eats the motivation of standing in front of bullets M23 (or whatever the opportunistic militia this time is called). Stupid western media is busy inventing political reasons for the militia, when probably the only agenda is to make the leaders of movement rich.
The great tragedy is: The thing UN is so worried about, Rwanda taking over east congo - would probably be the best thing happened to the area ever. A capital under 100 miles away could make more sense than capital over 1000 miles away behind a roadless jungle...
But no, clearly it's more important to keep colonial borders.