It does appear that Iran now has a free hand to attack our allies in the region without reprisals except perhaps more sanctions ;Saudi Oil fields ,the Gulf shipping lanes ,their proxies in Lebanon and Syria poised to attack Israel. Are they emboldened by the world's timid response ? Yes . Will they become more emboldened with each tepid response ? Of course . That is the history you should be concentrating on . Why would wobbly states like Qatar bank on us for protection when clearly the 12ers demonstrated that they won't get the support an alliance presumes ?
Just think of the audacity of this attack right before the UN General Assembly (which I'm told that Iran foreign minister Mohammad Javad Zari will attend ....I hope his visa application is turned down) . Trump's "locked and loaded " rhetoric appears to be more meaningless bluff .
Here is another history you should consider . More than once the embers of revolution against the regime have glowed only the be put down without us giving the green revolution any real assistance. This regime continues to rule with their jackboots on the people ;without any real legitimacy . One thing the sanctions have done is make the regime fragile. That is one of the reasons they are taking military risks .A targeted military response could very well unleash that revolutionary movement again.
The regime in Iran is the problem . If the country were not ruled by apocalyptic terrorists hell bent on dominating the region and exporting their brand of revolution ,then the thought of them possessing nukes would be far less terrifying . Even without nukes they are responsible for more terrorist mayhem around the world than any single terrorist group we engage in militarily.
Here is the reality . Iran has been at war with us for 40 years (talk about endless wars ) . When your enemy is determined to attack you then you are at war whether you like it or not . So the bottom line is that regime change is the only real solution to Iran. I'd rather fight it by backing the opposition inside the country 1st . But either way it is a fight we have no choice to engage.