Complex sentence: Trackers continued to provide excellent service in Naval forces of other countries for years after the US discontinued them; for example the Royal Australian Navy continued to use Trackers as front line ASW assets until the mid 1980s.
Split into simpler sentences: Trackers continued to provide excellent service in Naval forces of other countries for years after the U.S. discontinued them. For example, the Royal Australian Navy continued to use Trackers as front line ASW assets until the mid 1980s.