First skirmish in Cuipernam

The First skirmish in Cuipernam took place in 22 BBY during the Mission to Ansion. It began when Jedi Master Luminara Unduli and her Padawan Barriss Offee were attacked by mercenaries hired by Ogomoor, on the order of Soergg Vosadii Bezhin. They easily dealt with the first wave, as it was uncoordinated. The second wave, however, acted more as a unit and began to push the Jedi back. To escape them, Luminara ordered her padawan to climb up a nearby wall, though before Luminara could follow, Jedi Knight Obi-Wan Kenobi and his padawan, Anakin Skywalker arrived, cutting through the remaining mercenaries and forcing the rest into retreat.

Appearances
The Approaching Storm