Apparently Trump didn’t know Pentagon paused Ukraine aid back in February. Reuters: U.S. military aid to Ukraine was paused in early Feb — not by Trump, but by Defense Secretary Hegseth. There was no presidential order. The White House and State Department weren’t informed
If Musk fully crosses Trump, I wouldn’t be surprised if suddenly starlink and spacex were labeled as threats to national security.
It really depends on what Putin thinks of Musk.
Putin thinks (no, he knows) that all of his American puppets are easily-manipulated fools.
Using anything as shoddy as Starlink in a critical use case is definitely a threat.