Complex sentence: In 2017, the Methodist minister Dan Woodhouse and the Quaker Sam Walton entered the British Aerospace Warton Aerodrome site to try to disarm Typhoon fighter jets bound for Saudi Arabia that they targeted because they would be used in Saudi Arabia's bombing campaign of Yemen.
Split into simpler sentences: In 2017, the Methodist minister Dan Woodhouse and the Quaker Sam Walton entered the British Aerospace Warton Aerodrome site to try to disarm Typhoon fighter jets bound for Saudi Arabia. They targeted these jets because they would be used in Saudi Arabia's bombing campaign of Yemen.