In 2016, Jaeger had a son, Erich Jager, who would go on to become a pilot and join the Universal Peace Enforcement Organization (UPEO). At some point, he joined the Osean Air Defense Force and was assigned to the Strider Squadron. He later became aware of a legend surrounding the King of the Skies.
Jaeger's earliest known deployment in the Lighthouse War as part of Strider Squadron was a reconnaissance mission involving the surveillance of the Stonehenge ruins.