A soldier is set to run three ultra marathons to raise funds for a charity that aids veterans.

Staff Sergeant Greg Smith and his friend Pete Seabrook, both from High Wycombe, will run three 100km ultra marathons in three months, starting this month

This isn't the first time the duo, known as The Charity Adventurers, have supported the Royal Star & Garter.

In 2020, their epic 190-mile hike for the same cause raised £1,500.

Pete Seabrook and Staff Sgt Greg Smith will run three 100km ultra marathons for Royal Star & GarterPete Seabrook and Staff Sgt Greg Smith will run three 100km ultra marathons for Royal Star & Garter (Image: Supplied)

Royal Star & Garter provides care for veterans and their partners living with disabilities or dementia, with homes in Solihull, Surbiton, and High Wycombe.

The charity has also launched new services reaching out into the community.

The pair's latest challenge kicked off on August 3 with the Stour Valley Path 100km Ultra Run.

They will take on their second ultra marathon in September and end the challenge with a third ultra marathon in October, with the aim of raising £1,000.

Mr Smith said: "We think Royal Star & Garter is an amazing charity which does great work for veterans, which obviously resonates strongly with me."

The duo considered running three 50km ultra marathons but decided to push themselves further.

Mr Smith said: "Until training for this challenge, the furthest I have ever run before is a half-marathon in 2013, and I’ve hiked 50 miles over two days with the Army.

"We considered running 50km but Pete and I both thought we could go further.

"We’re not marathon or ultra-marathon runners, but we really wanted to test ourselves."

The Charity Adventurers, the brainchild of Mr Seabrook, raises money for military and civilian charities, reflecting the friends' backgrounds.

Mr Smith, 41, has been in the Army for 17 years and works with Apache helicopters in the Army Air Corps.

He is currently based at Army Aviation Centre Middle Wallop.

The soldier said: "I’m feeling nervous.

"We don’t have any experience in this so we’re going in blind.

"But we’re looking forward to the challenge."

To sponsor The Charity Adventurers, go to bit.ly/CharityAdventurers24.