Cook's 59 Tests in charge made him the nation's longest-serving captain, with his spell at the helm beginning in 2013.
Throughout that period the 36-year-old won eight of his 17 series in charge, including notable successes in India in 2012 and South Africa in 2015-16.
Cook also led the team to two home triumphs in the Ashes, in both 2013 and 2015, and a Test record that totalled 24 wins and 22 defeats.
The batsman cited a loss of energy as the reasoning behind his resignation, concluding that the team would benefit from new leadership and deciding to devote his full focus to his batting.
"We've kind of stagnated if we are being brutally honest," Cook said at the time.
"There is a lot of work to be done and I felt I just didn't have that energy to do it."
"That's part of the parcel of being captain, you are responsible."
Cook remained a part of the squad under new captain Joe Root until 2018, when he announced his retirement from international cricket after twelve years as a part of the England team – signing off with a century against India in his final innings.
In 2019 Cook was the recipient of a knighthood in the Queen's New Year Honours.