How important was the British policy of appeasement in causing WW2?

Can someone help me for my history assessment?! Good helpful answers please!
Can you fully explain how the policy of appeasement was applied and how this contributes to the out break of World War 2.

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��).