Explainer: The War in Yemen Explained in 3 minutes

Yemen has been facing its worst humanitarian crisis in decades. Thousands of people have been killed and millions have been displaced after Saudi Arabia launched a military offensive in 2015. The poorest country in the Arab world has become a playground for regional and international powers. Saudi Arabia considers Houthi rebels, who control vast swathes of the country, an Iranian ally and a direct threat to their security. Three years into the war, the country has been devastated and civilians are bearing the brunt of the war.