Military conquest was not illegal back then.That would be the same definition for Americans, Australians right?European colonists and their offspring.
It was illegal in the 20th century.
Name the law that made it illegal and I will show that the UN, ICC and ICJ have ignored when ther muslims have conquered with military foece in the last 75 years
You mean like when Iraq conquered Kuwait by force?
No when the muslims took Yugoslavia apart and claimed part of it, or when the muslims took India apart and claimed part of it. Then there are all the Horn of Africa nations that muslims took apart and claimed for islam.
Where are the UN troops evicting the muslim terrorists who have no legal rights to the lands they have stolen by armed force since the inception of the UN.