How can I tell the neighbors to shut their dog up without getting into a lifelong war?

i had this problem with my neighbors it was driving me nuts cause i have 2 toddlers who would be napping and they have a hound and it would bay and bay and bay i would be going crazy and the kids would not sleep. it would cause my dogs to growl (cause they know they cant bark unless someone is by or near our placeso mine would growl) so one day i went and told her to please stop her dog from barking its driving me cray as nicely as i could. she said she doesnt know how thats why she had not stopped him so i gave her some suggetions on how to do it and i havennt herd him sense. some times that works sometimes it doesnt if not you can call animal control or the cops for a noise complaint. ggod luck hope that helped