Captain Tom Moore sent inspired Tony Hudgell a personal video message after the double amputee shattered a charity target of his own.
The incredible five-year-old lost his legs after horrific abuse by his birth parents.
He was walking on his new prosthetic legs and crutches every day to reach his 10km target - and hoped to raise £500,000.
But he more than doubled that with pledges totalling £1.2million.
Now Captain Tom has sent a video message to say well done months after he smashed his own fundraising goal of £1,000 earlier this year.
The inspirational veteran, 100, eventually took in a staggering £32m after vowing to do laps of his garden.
Tony took heart from his efforts and did similar where he lives in Kings Hill, Kent.
The double-amputee walked 10km for the Evelina London Children's Hospital on his new prosthetic legs.
"Well done Tony," the captain said in the video. "Haven't you done well!"
His daughter Hannah Ingram-Moore added: "On behalf of Captain Tom and the entire family, we are so impressed by what you've done, Tony.
"It is absolutely incredible."
Tony was 41 days old when he was admitted to hospital, so badly injured he was not expected to survive.
Medics battled to save him and later amputated both legs below the knee, and adoptive parents Paula and Mark Hudgell were warned he might not crawl, let alone walk.
Paula said: “When I brought Tony home he was four months old, tiny and withdrawn. He was extremely poorly, his legs in plaster and arms only out of plaster the day before.
“We wanted him to have a challenge to see if his prosthetics would work. Since starting, he is stronger and can move so fast.”
It has raised hopes that Tony – who also has a dislocated left hip, arthritis and partial deafness from the abuse – might one day walk unsupported.
Paula, 52, and finance worker Mark, 55, are fighting for a “Tony’s Law” for tougher sentences for cruelty cases, with life terms for perpetrators.
