Yep, even in world wars some commerce still occurs between combatants. While sanctions are also imposed:
Conclusion
It is important to mark the third anniversary of the escalation of Russian aggression towards Ukraine. But given the current attempts by President Trump to end the war (potentially without proper consultation with the Zelensky government or its European allies), it would be foolhardy to predict that further sanctions would be necessary or sufficient to bring Russia to the negotiating table with Ukraine. The slow puncture of the Russian economy seems terribly sluggish – and it comes at a huge cost in terms of human life, economic hardship and global stability. https://www.economicsobservatory.com/sanctions-effectiveness-what-lessons-three-years-into-the-war-on-ukraine
My post was more in response to the troll posts here which applauded Trump so much for going after Russia, then on reading he really hadn't yet acted on any penalty on India fuel export to Russia i thought, the MAGA Trump applause on that was misguided. As most all of the applause for Trump is.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”