"To wake up and find out your country has bombed another country is serious indeed".

As a former minister put it, you are not alone if you heard the headlines on the radio, or a news alert pinged on your phone saying the UK had carried out military strikes on Yemen and wondered, what on earth is going on?

So why did Prime Minister Rishi Sunak get the UK involved in the strikes on the Houthis? As so often in politics, the causes and the consequences are simple but complex too.