Gate: Thus the JSDF Fought There was bound to be controversial anime. Not only is the author of the original Gate web novel, Takumi Yanai, a former member of the JSDF, the JSDF uses Gate characters on their recruitment posters. It is no surprise that from its very first episode, Gate has attracted criticism for its right-wing and nationalistic overtones. Even The Diplomat Magazine weighed in on the issue, describing Gate as one of many recent “military moe” series to use cute girls to sell JSDF propaganda. 
I found it surprising that Gate’s politics would garner so much debate on places like Reddit. It’s nice to see that so many Western anime fans are familiar with the debates around Japan’s wartime atrocities. On the other hand, Japanese perspectives on the anime are being ignored here, which is ironic considering that the whole point of these discussions is to shed light on the Japanese cultural and political context.
I wrote this post in an attempt to address the imbalance somewhat. This isn’t a rigorous study or anything, nor should you consider the excerpts I’ve translated a representative sample, but it should give you an idea of how some online commentators have been approaching the issues. I also decided to include some Korean perspectives as well, simply because a good deal of the Japanese commentary on Gate has been in reaction to what foreigners (mainly Koreans) have said. However, bear in mind that I can’t read Korean, so I am really just reporting on the Korean reactions that have been translated into Japanese.
tldr; 2ch users angrily insist that Gate is “just an anime” and that Koreans and leftists should stop being offended. Blog reactions have been more varied and nuanced.