With Columba having been split into 4 pockets, the Antereans moved in to secure them. After some strugle, the Antereans secured the major pocket in the north, Capturing the Columban Capital of Mundare and pushing into Riaa. What remained of the Columban government fleed to the Fort Haal pocket and ruled whats left of Columba from there. A major attack in 1933 broke trouth the pocket defenses and led to the Capture of Fort Haal, ending the Columban government for good.

By 1934, the Anterean attack into Riaa stalled into a standstill as reinforcements from Tucana, Centauri and Riaa arrived.

By 1935, Antares launched two major offensives. The fisrt was an advanced into the mountanus columban city of Fren, in an attemp to capture a major supply hub for the trapped troops in the mountains. The advanced stalled to a standstill due to overstreching their supply line and fierce resistance from whats left of the Columban army. Around the same time, Antares begun to push into Riaan islands in the west, capturing most of them due to little troops in the region and the lack of navy in the west coast of Riaa.

In 1936, a major offensive by the Northern Centauran Alliance pushed the Antereans out of Riaa and pushed deep ibto the heartlands of Columba, nearly pushing them back to the mountains and treatening to liberate the trapped troops in the mountains.