It's basically a war story where there hasn't been a conflict in hundred of years, Human forgot the horror of war and they play around in it. This is the main theme for G no Reconguista. The show isn't as confusing as many make it out to be. Just actually listen to what characters say and don't have the memory of a goldfish. But you can also benefit from looking at who is saying stuff, how they are saying it and why. The dialogue isn't as surface level like many shows, characters don't just serve as mouth pieces for the plot so the exposition you getis in a context. For the most part anyway.

The best part is the animation. It's beautiful and fluid plus with Tomino directing experience action scenes are fun to watch. The way color pallete and how the characters are drawn makes it feel like 90s anime except in digital now. The show quality is also consistent the whole season.