expression, ichidan verb
be forced to choose between two alternatives; be presented with two difficult choices
Used when someone is put in a situation where they must pick one of two options, often both undesirable or difficult. The passive form 迫られる emphasizes the external pressure.
彼は仕事を辞めるか、転勤するかの二者択一を迫られた。
He was forced to choose between quitting his job and transferring.
二者択一を迫られる場面では、冷静な判断が必要だ。
In situations where you are forced to choose between two options, calm judgment is necessary.