The offered engagement appears winnable, but the expected casualties would be disproportionately difficult to recover. Waiting through another siege turn preserves the force and may induce the opponent to make a worse decision. The choice places replacement cost and future combat power ahead of an immediate victory. Commanders must weigh the objective against the long-term usefulness of the troops they risk.
Notable Point · 2:04:00-2:04:16
Recoverability matters as much as winning a battle
A winnable battle is declined because the expected losses would be harder to replace than the cost of waiting through a siege.