Shortly after the Monsters of Rock appearance, Mustaine fired Behler and Young and canceled Megadeth's Australian tour. "On the road, things escalated from a small border skirmish into a full-on raging war," Mustaine later recalled. "I think a lot of us were inconsistent because of ." During the tour, Mustaine noticed problems developing with Behler and brought in drummer Nick Menza as Behler's drum technician. As with Samuelson, Menza was expected to take over if Behler could not continue the tour. Menza replaced Behler in 1989. Young's dismissal resulted from Mustaine's suspicions that he was having an affair with Mustaine's girlfriend, an allegation Young denied.