if his crime was to help Ukraine he has nothing to worry about as far as getting arrested unless he travels to Russia, China, Belarus or North Korea
Support for Ukraine can indeed carry serious risks in authoritarian states like Russia, China, Belarus, or North Korea, where dissent is harshly punished. The geopolitical tensions highlight the dangers faced by activists and volunteers in these regions. More insights on Russia's aggressive actions can be found here: https://paxconsulting.blog/2026/07/09/russia-attacked/