African Union troops have arrived in the Comoros to help its military regain control of an island where a renegade leader has declared himself president.
http://news.bbc.co.uk/2/hi/africa/7289318.stm 

The Comoran army chief said France had helped transport Tanzanian forces to the Comoros to prepare an amphibious assault on Anjouan island.

Lt-Col Mohamed Salimou said Anjouan's renegade leader, Mohamed Bacar, only understood the language of violence.

Mr Bacar unilaterally declared himself president of Anjouan island last year.

Earlier, AU special envoy Francesco Madeira told the BBC that time had run out for Mr Bacar and urged him to step down or be overwhelmed by its troops.

...

Col Salimou said the time for negotiation was over.

"We have negotiated over and over and now this idea is no longer in fashion," he told Focus on Africa. "We have come to understand that the only language that Mohamed Bacar will understand is the language of weapons."

...

A history of political violence has left the tiny Comoros archipelago in the Indian Ocean desperately poor since independence from France in 1975.

At times, the country has teetered on the brink of disintegration, amid tensions between the semi-autonomous islands and the central government.