Complex sentence: The two destroyers formed the 25th Destroyer Squadron as the PNS "Jhelum" and PNS "Tughril", under Commander Muzaffar Hasan, also joined the Royal Pakistan Navy.
Split into simpler sentences: The two destroyers formed the 25th Destroyer Squadron. The PNS "Jhelum" and PNS "Tughril", under Commander Muzaffar Hasan, also joined the Royal Pakistan Navy.