Operation Emperor's Hammer was a codename for an operation during the Siege of Borleias.
During the operation, Yuuzhan Vong forces were lured to the surface of Borleias and systematically destroyed in a 4-minute long orbital bombardment from Executor-class Star Dreadnought Lusankya.
It was an act of intentional irony that the operation was named after the New Republic's greatest enemy, Emperor Palpatine, and made use of one of his former command vessels, to engage in a tactic unused since his reign. It is named such in reference to Wedge Antilles' idea to fight the Yuuzhan Vong using the guerrilla warfare tactics and strategies of the Rebel Alliance when needed, and using the tactics of the New Republic at other times. Antilles realized that the usage of sheer, massive, overwhelming force—i.e. the Galactic Empire—would also be effective at times.
The text of Rebel Dream erroneously claims that Operation Emperor's Hammer was the first time that a Star Destroyer under the banner of the New Republic performed an orbital bombardment. In fact, the NRDF star destroyer Emancipator had previously been used to bombard General Evir Derricote's surface base during the First Battle of Borleias in 6 ABY, though the operation was a failure.
- The Complete Star Wars Encyclopedia