Or you could acknowledge that most every aggressive invasion in history was sold with the claim that the "other side fired the first shot".
Hitler took this to the ludicrous level of claiming that the Poles mounted an attack across the border, even producing a dead corpse or two. He just happened to have the entire German army armed, positioned, and ready to go within 6 hrs.
And the truth is that had the Poles decided on a preimptive strike on the Germans, that "first shot" still wouldn't have proven that they were the aggressor.
Next time which historical analogy would you like me to use, as that of the NAZIs appears to disturb you?