This story is collected in:

X-Wing Rogue Squadron Omnibus: Volume 1

• Issues 5, 6, 7 & 8:
  The Battle of Endor was never fought - it was just so much Alliance propaganda. At least, that's the lie being spread by members of the AEA (Ante-Endor Association). But Wedge Antilles and his Rogue Squadron comrades know the truth. They were at Endor when so many of their friends and colleagues gave their lives to destroy the second Death Star. And so, for those lost friends, this is a battle they will not fail.
  If Wedge Antilles can't persuade the alien Mrlssti to sell their cloaking device to the New Republic, the result could be disaster. And that's just what Wedge expects when he discovers that the negotiating party includes Loka Hask: the pirate chieftain who killed Wedge's parents!
  A cloaking device isn't easy to come by, even a long time ago in a galaxy far, far away. But when the members of Rogue Squadron try to pick one up from the super-scientific alien inventors known as the Mrlssti, they find they've been accused of every crime from burglary to murder, and that the Empire will stop at nothing to bring them in!
  The residents of Mrlsst should have learned their lesson long ago, when a noble Jedi sacrificed himself that the Empire might leave the Academy unharmed - nobody wins when you play in politics. But old lessons are easily forgotten in the heat of war. Over the years, the Academy has become a snakepit of secrets and plotting, and students and professors fight each other and one another. And now they're about to get a refresher course, the kind that's taught with blood and fire. Unfortunately for Wedge and the Rogue Squadron crew, the lesson comes just as they arrive on Mrlsst.

Synopsis taken from Dark Horse Comics, www.darkhorse.com.

Related Stories (in chronological order):

• Rogue Squadron 1/2 by Michael A. Stackpole et al.
• A New Hope
• The Empire Strikes Back
• Return of the Jedi
• The Truce at Bakura
• Lucky by Rob Williams et al.
• Rogue Leader by Haden Blackman et al.
• Rogue Squadron Special by Ryder Wyndham et al.
• The Rebel Opposition by Michael A. Stackpole et al.
• The Phantom Affair
• Battleground Tatooine by Michael A. Stackpole et al.
• The Warrior Princess by Michael A. Stackpole et al.
• Requiem for a Rogue by Michael A. Stackpole et al.
• In the Empire's Service by Michael A. Stackpole et al.
• The Making of Baron Fel by Michael A. Stackpole et al.
• Family Ties by Michael A. Stackpole et al.
• Masquerade by Michael A. Stackpole et al.
• Mandatory Retirement by Michael A. Stackpole et al.

The following novels are sequels to the above stories, and are set from 6 years after the Battle of Yavin during the period of The New Republic, in chronological order:

• Rogue Squadron by Michael A. Stackpole
• Wedge's Gamble by Michael A. Stackpole
• The Krytos Trap by Michael A. Stackpole
• The Bacta War by Michael A. Stackpole
• Wraith Squadron by Aaron Allston
• Iron Fist by Aaron Allston
• Solo Command by Aaron Allston
• Isard's Revenge by Michael A. Stackpole
• Starfighters of Adumar by Aaron Allston