Gate: It's time to liberate Falmart. (UGO or the massive crossover x Gate )

(Gate is an anime and the whole universe that I linked for the crossover is not mine, but the idea of UGO is mine and the idea of this bundle is also mine)This universe where there used to be a seemingly endless and bloody war. Alliances were only temporary and for defeating a common enemy and when the goal was achieved, the alliance broke up and battles began again while their enemy was recovering and gaining strength. However, after the "diplomatic revolution", soldiers from all states realized that they were only slaves of war and united again, they overthrew the current government and created "A United Galactic Organization" (UGO). After many reforms, diligence and blood, the galaxy has actually become perfect. Everyone is happy, satisfied and healthy. However, in the year 100382, shamans and fortune tellers from all corners of the galaxy predicted war...