During which scenario can a defensive team appeal a missed base?

A defensive team can appeal a missed base after making a proper request to the umpire. This is essential because in order for an appeal to be valid, it must be formally communicated to the umpire who is in charge of the game. The appeal process is a structured one, ensuring that the umpire can assess the situation and make an appropriate ruling based on the state of play and the specific circumstances surrounding the appeal.

While there may be various situations involving runners touching bases or calls made against offensive players, these do not automatically grant the defensive team the right to appeal. The formality of making the request is necessary since it initiates the appeal process and allows the umpire to focus on the specific alleged infraction, ensuring the game is officiated accurately.