Пре­об­ра­зуй­те, если это не­об­хо­ди­мо, слово NOT ALLOW так, чтобы оно грам­ма­ти­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

The American Civil War was fought between the Northern and Southern states over the issue of slavery. Technically, women _________ to fight in the Civil War. But that didn't stop an estimated four hundred to one thousand from trying.