Why did Nero choose Vespasian to command Roman forces in Judaea?

Emperor Nero selected Vespasian to command the Roman forces in Judaea in 67 CE primarily because he was viewed as a "safe" choice. While Vespasian was recognized as a highly competent and experienced general, his humble origins made it seem highly unlikely that he would pose a threat to Nero’s government or attempt to seize power, even if he achieved significant military victories.1

This appointment was considered exceptional at the time, as Judaea had not previously been garrisoned by a legionary army. To ensure the rebellion was crushed, Nero provided Vespasian with three legions and a substantial force of auxiliary troops. Despite a previous incident where Vespasian had offended Nero by falling asleep during one of the emperor's artistic performances in Greece, his reputation as a reliable military leader ultimately secured him the command.1