Complex sentence: The crew is informed of a Klingon battlecruiser called the "T'Ong" which was launched from the Klingon homeworld seventy years ago, during the Klingon war, to attack a Federation outpost.
Split into simpler sentences: The crew is informed of a Klingon battlecruiser called the "T'Ong". The "T'Ong" was launched from the Klingon homeworld seventy years ago, during the Klingon war, to attack a Federation outpost.