The South Pole Expedition Army Reserves team included soldier Lou Rudd, doctors Ollie Stoten, Alex Brazier and Jamie Facer-Childs and paramedic Chris Brooke.
IT worker Alun George had to drop out after 730-miles due to illness.
The gruelling 67-day trek in temperatures as low as -50C had previously only been completed by three people.
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Team leader Mr Rudd said: “We had a lot of worrying moments.”
“One of the guys got a foot infection and we didn’t know if he’d be able to carry on.
The SPEAR group admits the task had many worrying moments
One of the guys got a foot infection and we didn’t know if he’d be able to carry on
Lou Rudd, expedition leader
"The trickiest bit was coming down the Shackleton Glacier, because it was really heavily crevassed.
"We were pretty exhausted once we reached the thousand-mile mark.”
The expedition was in aid of ABF The Soldier’s Charity, which provides lifelong support to soldiers, veterans and their families.
Antarctica: Ice age the frozen world Wed, November 4, 2015
Antarctica, the southernmost continent and site of the South Pole. Most cruises to the continent visit the Antarctic Peninsula, which stretches toward South America where you will find Port Lockroy, a former British research station turned museum.
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Icebergs in Antarctica
The trek has so far raised £32,000 for the charity.
They hope to raise that amount to “well over £50,000” through charity dinner nights and auctions now the team are back in the UK.
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