Defender Ross Smith has returned to Ebbsfleet for a third spell with the Blue Square Bet Premier club.
The 31-year-old, who was born in Canada but began his career in Scotland, has now received international clearance.
"He has been training with us for a while," manager Liam Daish told the club's website.
"He will bring much needed depth to our squad, which has been stretched since the departure of Ian Simpemba and Jamie Darvill."
Smith first joined Ebbsfleet in 2006 and made 87 appearances, and also had a short second spell at Stonebridge Road two seasons ago.
He has also played in US Major League Soccer during his career.