Such is the Iranian influence in Iraq and Syria that US troops there would be at serious risk should the situation escalate beyond breaking point in Yemen. Short if invading Iran itself, there is not much anybody can do to leverage those asymmetric assets the Iranians now firmly hold in their hand. As for full-on invasion, a prospect that would be dear to the few the Neo-Cons who made it into the Trump administration, it would probably make “Operation Iraqi Freedom” look like the cakewalk Secretary of Defense Rumsfeld said it would be !
Despite all the claims made by the proponents of the Borg, they have told us very little about the actual operations currently undertaken by the R+6 in Syria. What these armchair analysts (I dare not use the word “strategists”) are missing, is that the Russian involvement in the Syrian conflict already has changed the course of the war, at relatively low costs, contrary to the anti-ISIS strategy of the White House. Indeed, applying the same “metric” analysis to the “degrade and destroy ISIS” would make for a sobering account.