DAKAR (Reuters) – When Central African Republic (CAR) pleaded for help last year to fight marauding militias, former colonial ruler France offered guns it had seized off Somalia. But Russia objected and donated its own weapons instead.                                                                                                                                                          By early February, Russia had sent nine planes with weapons along with dozens of contractors to train local soldiers and secure mining projects, marking the start of its highest-profile military foray in sub-Saharan Africa for decades.                                                                                                                                                                Muscling in on a country dominated by France for years served as a statement of intent about Moscow’s renewed push for global prestige and influence, and is part of a wider campaign shaking up long-standing power dynamics on the continent.