Poorly reasoned. A country may suffer from a civil war even without being a "failed state"; and other countries may see fit to intervene in the civil war, on one side or another, or even in order to stop both from fighting. And conversely, a "failed state" may exist for a decade or more, as it did in Somalia, without any serious fighting; and its situation may be resolved, as in both Somalia and Afghanistan, by civil war and/or outside intervention.