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The RIS Xi was a Romulan starship, a D'virin-class incursion frigate in service of the Romulan Star Empire's Imperial Fleet in the 24th century.
In 2367, the Xi engaged a Klingon expeditionary force along the border. (Last Unicorn RPG - The Way of Dera module: The Romulans)
| D'virin-class incursion frigates | ||
|---|---|---|
| D'relix • D'virin • Marilon • S'tar • S'var • Vathos • V'mendin • V'nitor • Xi | 
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