It looks like a cool flag for a Christian Knight to put on his lance as he charges into a horde of Muslim fanatic warriors. What fun!
Good point John. Now that I think about it some variation of this "Flag with a cross" has been around since the knights templar. I have feeling it somehow originated with the free masons. Not sure why I didn't think of this initially. Especially considering my grandfather and great grandfather were both 33rd degree scottish rite masons. I have studied quite a bit regarding the free masons so this doesn't surprise upon further reflection
As a matter of fact, the mason's sword I own, which belonged to my great grandfather, has a flag with a cross on it being carried by knights. Undoubtedly there is a connection between these which bring even greater significance to the UN-Christian origins of this symbol.
So yeah, thanks John for your random comment, it helped me think a little bit haha!
Also, I know there is an official story of how it came about but I wonder why it caught on so fast? Like why would it be required by churches to make children say this nonsense of a pledge?