反击必须在受到攻击后以自卫为目的，或者为了应对可能发生的直接威胁而采取自卫行动，无论是上述哪种情况，都不可能有时间去讨论非致命的替代行动。
They must be conducted either in self-defense after an attack, or in anticipatory self-defense against an immediate threat, when taking time to discuss non-lethal alternatives is not feasible.