No, no this battle was one of the first that St. Dimitrius started to liberate Russia. The whole point of those multiple battles was to get rid of Tatars.
Imminent danger posed by the enemy.
I don't know if this is the same passage but here is what St. Joseph writes:
but our killing and slaying them
Well, I am sure in time you will able to confirm them. I don't think St. Joseph the wonder-worker is a lying babbler. I hope you don't either. I just think it's weird that we as worldly men are right in our thoughts and a great ascetic that was glorified isn't.
Let us say about other words of the same great Church teacher, St. John Chrysostom: "we should not kill the heretics, since if we would kill the heretics, the universe would be engaged in a never-ending war". The hierarch says this about the bishops, priests, monks and all the clergy, but not about princes and earthly judges. If he would be talking about the kings, princes, and judges, then he would say that it is not appropriate for the kings, princes, and judges to kill heretics. He, on the contrary, says: "If we would kill the heretics". This clearly shows that he is talking about the bishops, priests, monks, and lower clergy, since he himself was first part of the lower clergy and a monk, then a priest, and then a bishop. This is why he says on the behalf of all: "If we would kill the heretics, the universe would be engaged in a never-ending war", - but this is not at all said about kings or princes or judges"
And when we were liberating Holy Rus we were not killing a living icon? Plus as written in one of the articles...how do you think Byzantium and Rus' came to be? The whole point of those two empires was to spread Orthodoxy by expanding. Such expansions often required killing.
By killing anyone, we destroy a living icon
St. Athanasius to that says that heresy is the worse out of all the sins. Well...St. John would argue that schism is worse but you get the idea.
Now I guess, I should finally state my own thoughts on this.
I am not so much in favor of execution but I do think that at his time it was necessary. However, I do think that there is absolutely nothing wrong with persecuting heretics. Moreover, it would be an appropriate thing to do.