If all we needed to win was the Torah, then Hashem would NEVER have sent Am Yisrael into ANY battle. But he did. Time and time again.
It is naive and foolish to say that we don’t need soldiers to fight, all we need is Torah. Of course we need both. That is part of our hishtadlus. Yes, we need Torah learners, but those same Torah learners need to know how to defend themselves properly. The point that was made about if an Arab stormed a Yeshivah, would you arm yourself with a Torah or pull out an Uzi to shoot him, was an excellent one. Moshe Rabbeinu was at the forefront of every battle.