French soldiers began arriving in theCentral African Republic on Monday to help stem a worsening religious war that threatens to become a genocide, the latest in a series of military interventionsParis has recently undertaken inAfrica.Military heavy-lift Antonov-124 aircraft ferried troops, weapons and supplies to the capital,Bangui, as convoys of armoured vehicles drove in overland.Paris is deploying 1000 troops to add to a standing French force of 400 already in the country, where senior UN officials warn Muslim-Christian fighting risks spiralling into genocide.