Karl Bushby, a British ex-paratrooper, is currently on the final stretch of his 27-year-long journey, which kick-started in 1998. As part of his trek , the 56-year-old has crossed 25 countries, war zones, deserts, jungles, as well as remote and politically fraught places on the Earth, The Washington Post reported.

It all started when Bushby made a barroom bet in his 20s that required him to walk from the southern tip of South America to his home in England.

During his military life, Bushy was exposed to physical hardship and foreign terrain. Also, being in the army made him think about death, especially after losing several of his friends. "There was an emphasis on the fact that life is short, and you should live it the best you can,” The Washington Post quoted him as saying. These

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