Liars and the lies militarists tell

So let me get this straight. In 1979, militarists in the US said we needed to impose an arms embargo against the theocratic regime in Iran. By 1986, they were saying we needed to sell arms to theocratic Iran, in violation of the embargo they demanded, so we could use the money to destabilize Central America. Now, the militarists who armed theocratic Iran saying we need to launch some sort of aggression against them, to use that Orwellian phrase, in order to 'preserve peace' because... they allegedly won't disarm. Why exactly would anyone with an ounce of critical thinking skills still be listening to these people?