Why outside intervention may prolong a civil war

Could US air and naval intervention on the Sudanese Armed Forces' side accelerate the end of the Sudanese Civil War?

It could deliver a short-term military advantage, but might delegitimise the winner and extend the fighting as a guerrilla war.

US air and naval power could give the Sudanese Armed Forces an overwhelming short-term advantage. The defeated opponent might disperse instead of accepting the result, turning the conflict into a longer guerrilla war. Open backing could also weaken the winner's legitimacy by making victory appear foreign-delivered. Limited, deniable pressure is presented as less destabilising than overt intervention, with an explicit caveat that travel had prevented a review of the latest news.