Japanese Sword Signature Help

[Naga Sasra]

Rich S

Thank you so much for posting the "writing" in a Japanese Sword Forum, the good thing is that it is not a fake signature so I will now consider the blade as unsigned. It was really driving me up the wall, as I was trying to look at it as a signature.
As it turned out it is a patriotic slogan instead, no wonder I could not figure it out.

Thank you again for your effort.

Best,
Erik