Hello! We are taking in two Great Pyrenees males this weekend. They are both livestock guardians on farms- but the current owners are moving to an apartment and a city. These pups are from two different places and have never met, they’re both male, one of them is five(not neutered) and one of them is 1(neutered). My question is- how should we introduce them and how can we ensure they don’t escape? We have 4’ high wire fencing- they will live in the cow pasture- but I’m very concerned they will jump or dig under the fence and get hit by a car. We have 20 acres but live by a highway. Our other GP’s have grown up on the farm and are used to the area and the pasture. Lastly, should we have the five year old neutered? I’ve never not fixed an animal but I’m wondering if there is a benefit to their guarding abilities. Thank you all in advance for the help!