(Reuters) - When Rwanda's ex-spy chief Patrick Karegeya was murdered in South Africa in 2014, his former brother-in-arms James Kabarebe was blunt: "When you choose to be a dog, you die like a dog.

[AFP] Rwanda's President Paul Kagame has shown his strategic acumen, honed by 30 years of cementing control at home and influence abroad, as conflict flares in the Democratic Republic of Congo.