The ISS Eagle (NCC-956) was a Constitution-class starship of the Terran Empire. It was captained by Zach Banner. Less than a week after becoming captain, he was nearly killed by his first officer Michele Tyler in 2269.
The ISS Eagle engaged in battle with the prime universe USS Eagle that was brought to the mirror universe by mirror Banner. When she was about to finish of the prime universe Eagle, but was forced to fall back after she fell under attack by the Romulans of the Romulan Republic. (Star Trek: Eagle)