Complex sentence: He enlisted into the Royal New Zealand Navy on 14 January 1997, was allocated the service number T1002840, going on to serve as a Commissioned Officer and was subsequently released in the rank of Ensign on 12 Jan 1999.
Split into simpler sentences: He enlisted into the Royal New Zealand Navy on 14 January 1997 and was allocated the service number T1002840. Smith served with the RNZN as a Commissioned Officer and was subsequently released in the rank of Ensign on 12 Jan 1999.