ADV Films, the #1 distributor of Anime in North America initially stated that they have licensed Keroro Gunso for the US as Sgt. Frog. The anime dub (I prefer sub) was supposed to be released in February of this year but now it’s delayed till who knows when because they haven’t finished negotiations with the TV networks!
It’s times like this when I’m thankful for the internet, you can just watch up to episode 50 here and not have to wait for the men in suits to finish their negotiations. Which reminds me, I will add more episodes soon.