Dartford have brought defender Callum Driver back to Princes Park.
The full-back becomes the first new signing made by joint-managers Jamie Coyle and Adam Flanagan.
Driver, who was with Dartford in 2014-15, played under Coyle at Welling United last season.
Coyle and Flanagan said: "We are delighted to bring Callum back to Dartford having been with us when the club was in the National League.
"The management team highlighted early on that a right-back was required and after having an excellent end of the season at Welling, Callum was placed at the top of our targets.
"We are excited to have him with us and look forward to him continuing to impress in the upcoming season."
Driver left Dartford after their relegation to 2015, joining Maidstone and helping them win promotion to the National League.
He later played for Hemel Hempstead and then moved on to Welling, where Coyle was in charge until May 1.