The Vietnam War is the only war in American history in which US war dogs, which were officially classified by the military as "military working dogs," were not allowed to officially return home after the war. Classified as expendable equipment, of the approximate 4,000 US K-9s deployed to the Vietnam War, it is estimated that only about 200 US war dogs survived Vietnam to be put into service at other outposts stationed overseas. Aside from these 200 or so, the remaining canines who were not killed in action were either euthanised or left behind.
Another option for a GPS tracker is the Whistle 3 GPS Pet Tracker. This small, lightweight tracker attaches to your pup’s 1-inch collar or harness and is able to determine their location, as well as their active minutes throughout the day by using cellular, GPS, and wi-fi technology. If your dog leaves the designated safe place (say, your yard or your house), you’ll get notified right away via email, text, or through the app. The tracker is waterproof and has a battery life up to seven days. The app is available for iOS and Android. Subscription plans are sold separately.
Some dogs are simply easier than others: they take to training better and are fairly easygoing. They're also resilient enough to bounce back from your mistakes or inconsistencies. Dogs who are highly sensitive, independent thinking, or assertive may be harder for a first-time owner to manage. You'll get your best match if you take your dog-owning experience into account as you choose your new pooch.