One very under-reported Iranian contribution to the Shia rebel effort is an effective media manipulation effort. Not as massive or well-equipped as the ones created by China and Russia (the main practitioners of this) but the Iranians do pretty well spinning news of events in Yemen to favor, as much as possible, the Shia rebels. The Iranians know what appeals to mass media, especially in the West, and what does not. Thus anytime a coalition airstrike kills civilians (or rebels who can be described as such) the Iranians see that pictures and stories are supplied to news media worldwide. Coverage of the nasty things the Shia rebels do to hostile civilians in areas they control is not reported because no journalists are allowed in rebel areas. ...
The Iranians will also send out stories of rebel controlled civilians going hungry when that can be blamed on the coalition, the Yemeni government or the West.
You'll recall earlier this year that I expressed puzzlement over the claims.
Although it is now true because the war drags on that lack of food is going to cause a catastrophe if not addressed quickly. Which would unfairly validate the past claims of ongoing catastrophe.
Saudi efforts to win without enduring casualties lengthens the war and makes sure more of somebody else dies. Yemen is false compassion in action.