If I were in charge I would blowup a similar dam in Ruzzia. Let the bastards know that there ill be consequences for this war crimes.
Say some piece of shit country would drop nuclear bombs on a city full of civilians, and I should not do the same back because for morality? Will not that encourage that evil country t drop more nuclear bombs?
What is your opinion then, if you are losing a way with an enemy that plays dirty you give up and accept your annihilation? Your children will be brainwashed by the enemy and send t fight more evil wars.