I Respect His Commitment, But There Are Consequnces to Fighting in a Foreign Military

Not just his prison sentence but I believe this violates U.S. law. 10/7/24 PBS:

MOSCOW (AP) — A Russian court on Monday sentenced a 72-year-old American in a closed trial to nearly seven years in prison for allegedly fighting as a mercenary in Ukraine. Prosecutors said Stephen Hubbard signed a contract with the Ukrainian military after Russia sent troops into Ukraine in February 2022 and he fought alongside them until being captured two months later.