“Make a Coalition Flag!”
Several ideas and images came immediately to mind, and were wondrous, but, this flag must be neutral, open to several interpretations, such as
Taking God/Allah’s High Ground to Victory
Taking the Moral High Ground to Victory
I did two versions. A third may have a dark-blue strip around the edges with as many stars as members.
“The moral high ground, in ethical or political parlance, refers to the status of being respected for remaining moral, and adhering to and upholding a universally recognized standard of justice or goodness.”