The planet of Oomglor was not a warmongering world. Before the Yuuzhan Vong aliens invaded the galaxy, in fact, in had never participated in a single battle. That was an impressive record of pacifism for a system with a thousand year colonization record.
Situated midway between Tynna and Yag'dhul, Oomglor was a planet populated by mostly humans and Rodians. It had enjoyed plentiful immigration back in the prime of the Republic, when it was bought by a Corellian Hutt who was looking for a good tourist world. Its beautiful forests, huge mountains, and lush grasslands made it an ideal getaway for vacationers or colonists looking for some serenity. Its strange name was taken from a tablet found by the first explorers in some ruins on the planet's highest mountain. The writing was a medley of symbols and lines, and the message had to be sent back to Coruscant to see if it could be interpreted.
The writing turned out to be the written language of the Rakata, a little known species that was discovered towards the end of the Sith War, nearly three millennia before the tablet was found. However, the Rakata had not colonized any worlds during their existence, which ended only a century after their discovery due to heated civil war among clans on their homeworld. Even stranger was the fact that the tablet was dated nearly twenty two thousand years old- older even than the Republic itself.
Although the carved text could be deciphered into Basic, the only word that could be translated was 'oomglor'- or 'green'. Thus, much to the dismay of the new ruling Hutt, who hated the sound of the word "Oomglor", the name stuck.
For two decades colonists arrived on the planet and settled, but eventually the immigration slowed, especially with the discovery of the much more popular colony world Naboo nearby.
The world's deed was passed among the Hutt family, and eventually sold to a wealthy businessman on Coruscant. By this time, a new party had formed from the colonists who bought the world for the people, and Oomglor became a democracy.
The residents lived out their lives from generations, witnessing the fall of the Republic, the fall of the Empire, and the fall of the New Republic to the Vong. They didn't much care about offworld war or politics. That is, until war came to them.
One day, a small Vong fleet entered the system and targeted Oomglor. The battle was short- Oomglor's feeble Defense Fleet was weak and untested in battle, and was hardly a challenge for the legions of Vong coralskippers that penetrated the planet's pristine atmosphere.
The shocked citizens were totally unprepared for war or occupation and submitted to the invaders, destroying most of their droids and technology. Life passed under the harsh rule of the aliens as it always had, until word came one day that the main Vong fleet had been defeated at Coruscant by the newly assembled forces of the fledgling Galactic Alliance. Rumor had it that they were assisted by a legendary planet that had the power of sentience, but few believed such idle gossip.
With the news of the death of their channel to the gods, the Vong leader Shimmra, the Oomglor occupation force went into a state of panic. Most of the Vong jumped back to the Core to submit to the Alliance, while many warriors killed themselves in the vain hope that the gods would accept their sacrifice. Only the traitorous smugglers of the Peace Brigade that had governed alongside the Vong remained. They immediately stepped in to govern the planet as the citizens, filled with renewed hope, sent desperate distress signals to the Alliance worlds.
Within the day an Alliance battle fleet exited hyperspace in the system, under the command of Jacen Solo, the celebrity son of the famous Rebel smuggler Han and the Rebel diplomat Leia Organa. He was famous for escaping Vong captivity twice as well as for his recent help in Shimmra's defeat and, plus, he had just been publicly promoted to Fleet Commander. Alongside Jacen's flagship, the newly commissioned Mon Calamari heavy cruiser Vongbane, flew the famous Millennium Falcon, the legendary freighter of none other than Han Solo himself.