What could Biden, specifically, have engaged in regarding talks to avoid this?
Exactly.
This conflict between these 2 sides has been ongoing with varying levels of animosity for almost a hundred years, and pretty much every country in the world (and every American president in that time period) had taken a crack at trying to calm things down.
Yet here we are again in yet another shooting war.
What could Biden (or anyone outside of the 2 groups) have done to prevent this iteration of bloodshed?