If this war gets wider and many countries participates (but let's hope and let's pray that it won't happen) I really think all the matches and games that participated in war will be stopped or cancelled. They will focus on fighting or defending their countries rather than competing with sports. So there will be a huge impact to sports and competitions during wartime.
Indeed. No one could ever tell when will this war would stop and if such would just last briefly, on a concentrated area or become worse. But on top of that, I don’t think that sports and competitions will be given attention during the times over the efforts in securing public safety and stopping this war. That being said, it would be the best to not risk to bet on events that could potentially be disrupted or whatnots.