One year later, John Clark and Robert Ritter meet up in DC, as Ritter is now freshly promoted to the post of CIA director. Clark has been thinking about the events from the end of Without Remorse, and how he doesn’t want a repeat. Much like his friend had a plan to save his life, John Clark has his own plan to make sure this sort of thing can be prevented before it happens again.
“A multinational counter terrorist team” is his suggestion, with US, UK, and “a handful of selected NATO personnel” making up its ranks. It will have the “full support of the national intelligence services,” and be run by Clark himself. And it shall be called Rainbow, because of very personal reasons that John Clark doesn’t want to reveal. That’s ok, because for now, the mere setup of Rainbow Six is news enough for fans of the Clancyverse.