I don't agree with him going there; it puts him and those who protect him, and Zelensky, in an exposed, risky position and, to me, minimises the plight of those who are there who are in genuine, imminent danger. There can't be real danger. The meeting obviously wouldn't have been allowed to go ahead, if there were snipers/assasins in the vicinity, so I suppose that an orchestrated military action has taken place, by who knows what agents of other powers, to secure the area where the two of them are walking. Zelensky, hitherto, has kept a low profile and says that he is a marked man and a target, so lots must have been done, by sophisticated and unspecified forces, to facilitate that photo op safely.
To me it is showboating by Johnson and achieves nothing for the general good, only for his own profile.
He's a mystery to me: he became very ill with Covid, partly, he states, because of being unhealthy and carrying too much weight. Why has he piled on the stones again? Surely his wife can help him with healthy eating, and he should, in his role, have the self-discipline to keep to a calorie-controlled diet. I seem him as not, in any meaningful sense, in control