Asked what his greatest accomplishment was, Mr Bush replied: "I keep recognising we're in a war against ideological thugs and keeping America safe."
He also defended his actions over the recent economic crises.
"When the history of this period is written, people will realise a lot of the decisions that were made on Wall Street took place over a decade or so," he told ABC.
Mr Bush - whose approval ratings are at an historic low - said he was happy for history to be his judge.
"I will leave the presidency with my head held high," he said.
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