Country A attacks vastly more powerful neighbor. They have no defensive infrastructure (for civilians), no plans for minimizing civilian deaths, no hope of actually winning the war they started. There strategy is to fight in a dense urban environment among their own civilians while firing thousands of unguided rockets at their enemy, knowing the retaliation is going to be horrific with no way for them to stop it (other than surrendering, but they would rather all die).
Country B has possibly the best missile defense system in the world; mainly because their neighbors shoot unguided rockets into their city. They work to defend their citizens at all costs even with expensive missiles and a protracted military campaign. They design cutting edge laser missile defense to help them alleviate the burden of protecting their citizens. The only reason they do not have to completely annihilate their neighbor who's shooting rockets at them is because they are able to intercept most of them. If those rockets were actually landing and causing tens of thousands of civilian casualties their retaliation would have to be far more deadly.
People on the internet: "actually its the civilians from country A who need defenses"
Country B has possibly the best missile defense system in the world; mainly because their neighbors shoot unguided rockets into their city. They work to defend their citizens at all costs even with expensive missiles and a protracted military campaign. They design cutting edge laser missile defense to help them alleviate the burden of protecting their citizens. The only reason they do not have to completely annihilate their neighbor who's shooting rockets at them is because they are able to intercept most of them. If those rockets were actually landing and causing tens of thousands of civilian casualties their retaliation would have to be far more deadly.
People on the internet: "actually its the civilians from country A who need defenses"