Complex sentence: With World War I looming, following Yorkshire's final County Championship match in 1914, Kilner and Major Booth enlisted in the army together, joining the Leeds and Bradford "Pals" in the West Yorkshire Regiment.
Split into simpler sentences: With World War I looming, following Yorkshire's final County Championship match Kilner and Booth enlisted in the army. They joined the Leeds and Bradford "Pals" regiment in the West Yorkshire Regiment.