Why? Is he suddenly running scared and realizing just how badly he has crippled the US military and national security, not to mention any hope of counting on our allies to back us up when the threats start coming?
Then again, Trump is gullible enough to actually believe other countries were disarming and would shut down our entire program without a hint of assurances. And then he'd have to tell his MAGAts to be shocked when a few of our cities got nuked because how could anyone have predicted this could happen.
Crepuscular rays: shafts of light which are seen just after the sun has set and which extend over the western sky radiating from the position of the sun below the horizon. They form only when the sun has set behind an irregularly shaped cloud or mountain which lets the rays of the sun pass through a cloud in bands.
In this case, I think the light is making it look like the cloud is dark bands, when in fact the entire cloud is probably all dark but being lit up by the rays. (And yes, this affect can be seen both at sunrise and sunset.)