I will go with my original thought then, the Crusades - I think European Christendom had not yet incorporated circumcision at the time, but the Muslim world was practicing circumcision, so that would be a war between the circumcised and the uncircumcised?
Wasn’t the Iraq war mostly between muslim Iraqis, who are almost always circumcised, and US-americans, who are also usually circumcised?
TIL Iraqis circumcise their boys!!
I will go with my original thought then, the Crusades - I think European Christendom had not yet incorporated circumcision at the time, but the Muslim world was practicing circumcision, so that would be a war between the circumcised and the uncircumcised?