While I certainly oppose Rwanda's support of M23 and I have long since given up the hope that Rwanda would not involve themselves in this mess this is larger than a Rwanda and Congo problem. Many authors have described the previous conflict(s) in eastern Congo as Africa's World War. There were so many nations getting involved that the whole thing looked like it could end up setting half the continent on fire if it kept going at its old pace. Thucydides you are correct, Rwanda is absolutely the Israel of Africa, and the West and the UN caused it. France supported the Genocidaires/Hutu extremists during the Rwandan Genocide of 1994. America backed France's play by not stopping it and then provided more help to the displaced in Goma (a large number of them of the military and militia groups that perpetrated the Genocide, and the rest largely controlled by them) than it did in Rwanda. The war crimes trials were not held in Rwanda but in Arusha, in part as I recall due to the complete lack of infrastructure in Rwanda post 1994. Rwanda itself could barely hold trials for the grunt level Genocidaires and those that found ancillary ways to profit from the chaos and insanity due to a total societal collapse post Genocide, post Civil War, post refugee crisis.
With all this it is no surprise that Rwanda is doing this. It is, in effect, a Tutsi nation, demographics be damned. And this is just like the abused child growing up to be the abuser. Every time we (as a planet, as civilized nations, as the First World, etc.) don't fully step in to stop a Genocide we risk this happening.
Don't get me wrong, we need to stop this. We needed to stop it a decade ago. I am no apologist for Rwanda, far from it. No matter what my level of knowledge on Rwanda and the 1994 Genocide is I cannot condone them doing the same thing to others. It is horrific. But by the same token we created this mess as much as Rwanda itself did. We did not step up when we should have in the West. We want a less brutal world, but we are not willing to fight for it. We want a world where people are not destabilizing nations, and coming close to destabilizing continents or large swaths of them, but we have not the spine to step up. This is another chance for the West to show what it is made of. And I am sure again we will fail, falter, and half step.
Look no further than who sits on the US Holocaust Memorial sponsored committee designed to identify and stop genocides to see that we, as a nation don't take stopping genocide seriously. Former Secretaries Cohen and Albright co-chair that committee. Cohen was not Secretary of Defense during the Rwandan Genocide, and Albright was still US ambassador to the UN at that point, not Secretary of State, but both still had enough pull to do something. I have no idea what Cohen did or did not do then, but I do know what Albright did, not much. Since leaving office when not acting like they care about stopping genocide they like to take money from the Turkish government to deny the Armenian Genocide that occurred during World War 1. These people have zero reason to be on a committee about stopping genocide, though Albright should be called before one early and often as a case study in what not to do. Our priorities are absolutely backwards here in the US on this issue and they always have been.