One thing that stands out in all the conflicts going on just now is that not one of the national leaders who starts a war is at the front. Putin is the most obvious example, though all other leaders who have started wars are guilty of the same.
What is also striking is that this most obvious lack is never called out by the enemy. The American president does not insist that Putin should lead the way from the front. Of course, as he would need to do the same the next time he starts a war.