Complex sentence: Eddie Adams'iconic image of South Vietnamese General Nguyễn Ngọc Loan's live execution of a Vietcong operative was taken in 1968 as was Walter Cronkite's call to honourably exit Vietnam because he thought the war was lost.
Split into simpler sentences: Eddie Adams'iconic image of South Vietnamese General Nguyễn Ngọc Loan's execution of a Vietcong operative was taken in 1968. The year also saw Walter Cronkite's call to honourably exit Vietnam because he thought the war was lost.