Team GB ended a run of three successive defeats to see off Team USA and win the Simpson Cup on the Old Course at St Andrews.
The Ryder Cup-style event is an annual tournament between teams of 13 injured servicemen and veterans from the USA and their British counterparts.
Competitors are all members of the On Course Foundation and the Simpson Cup raises aware and funds for the charity. The organisation will also be the beneficiary of The Sinclair Invitational on the Staysure Tour later this year.
They help aid the recovery of injured and sick service personnel and veterans through nationwide golf events and employment in the golf industry.
Great Britain took a slender one-point advantage into the final day and extended their lead during the singles, winning the contest 11.5-7.5 to take the title for the first time since 2015.
Ian Bishop, Team GB captain, said: "So proud of my team this week. Everyone has played their part, and definitely a special mention goes to the rookies, who were sensational."
Victory leaves the overall series delectably poised at 4-4, with Team GB taking the inaugural title at TPC Sawgrass in 2012 and adding wins at Royal Lytham in 2013 and Royal St. George's in 2015.
Mike Stafford, Team USA captain, said: "Congratulations to Team GB, they were terrific this week, and deserved winners of the Simpson Cup. We gave it everything, and our guys battled hard."
For more information on The On Course Foundation, pleaseclick here.
