Is the already fragmented Yemen heading towards chaos? President Abd-Rabbu Mansour Hadi resigned last week after Houthi fighters stormed his residence, following a dispute over the constitution. Political control in the capital remains uncertain for the time being. The situation is putting regional stability is at risk, as well as Yemen's relationship with the US, a key ally. What is needed to resolve this crisis?

Could sending more troops to eastern DR Congo help the region, or will it worsen an existing humanitarian crisis? UN and Congolese forces have begun a new offensive targeting the Rwandan rebel group FDLR. The last time a similar offensive was launched in 2009, thousands of civilians died and a million Congolese were displaced. What needs to happen for the violence to end?