@SuperOniichan It was the same in my country. There was this very good piece of poem that were banned from circulation becuz it talked about the deaths and suffering of our soldiers, despite its praising of said sacrifices. The ban has been lifted now and that piece is now taught in highschool across the country. However, it was apparent that there is a certain mental image that needed to be had during the war: strong, manly, courageous, protective, and about killing enemies, not deaths.
the stories of the women in this manga (and probably many many many other women and men at that time) goes the exact opposite of that image. There were deaths and sacrifices, there were womanliness, homesick, weakness, romance, etc. It is not that hard to understand when stories about those who show weakness, yet part of the army, would not be allowed to publish.