Why do the stripes on the sleeves of US and UK soldiers point in different directions?

The stripes on the jacket sleeve of UK soldiers point down, but those on US army uniforms point up. Why is that? You would expect them both to point the same way.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).