Complex sentence: Major-General John Dutton "Johnny" Frost (December 31,1912-May 21,1993) was a British airborne officer, prominent in Operation Market Garden (at Arnhem bridge).
Split into simpler sentences: Major-General John Dutton "Johnny" Frost (December 31,1912-May 21,1993) was a British airborne officer. Frost is most known for his involvement in Operation Market Garden (at Arnhem bridge).