hello, i m christian fraser. you re watching the context on bbc news. russia has criticised the visit to the united states by ukraine s president volodymyr zelensky. moscow says it s futher evidence the us is fighting an indirect war against russia. after ten months of conflict the ukrainian forces have regained some of the areas taken by russia. but on the new front lines it is the weather that is slowing the advance. but russia s role as peace keeper in the southern caucuses is much diminished. armenia accuses moscow of failing to prevent a humanitarian crisis, in nagorno karabakh. and yippee kay yay or nay? is die hard a christmas film or not?