It is a military base. They are not going to let event planners come with their own staff, only the soldiers can do this work.
The calls for murder of Putin and/or Trump are so stupid and emotional reactions. Killing a foreign diplomat is neither easy nor profitable. People really think killing Putin would stop the war, it won’t. It might actually legitimise the war for Russian public. And why kill him while he is on a peace discussion summit? Don’t you want the war to end?
Europe still gets a large chunk of gas from Russia. US gets fertilisers and uranium from Russia. Stop that and then spout your first world bullshit