In 2018 Saudi Arabia announced the Salwa Canal Project - a plan to build a 200m-wide, 70km-long canal along their border with Qatar. This comes after Qatar's closest neighbours, Saudi Arabia, Bahrain, UAE and others cut diplomatic ties with Qatar. Find out how Saudi Arabia might be able to make this canal along the border with Qatar happen, if it will make Qatar into an island, and what Qatar's response has been. The Salwa Canal explained.