AceShowbiz - Kate Middleton and Meghan Markle put a united front while attending Christmas Church service on Tuesday, December 25. The two duchesses were joined by the British royal family, including Prince William and Prince Harry, for the royal family's annual tradition.

Kate and Meghan looked like two best friends while walking to the Church of St. Mary Magdalene at Sandringham. They were seen sharing a joke and talking to each other. At one point, the expectant Duchess of Sussex was even seen putting her hand on Kate's back as the former actress leaned in for a friendly chat.

Kate looked flawless in a red coat dress by Catherine Walker with a matching hat and shoes during the church service. Meanwhile, Meghan dressed her baby bump in a deep navy dress and a Victoria Beckham coat with a matching fascinator.

Rumor has it, Kate and Meghan called a truce after The Queen and Prince Charles asked the two to put an end to their feud for Christmas. "The Queen and Charles have allowed the situation to play out without overtly interfering - but they both made it clear that Christmas was for the whole family to really come together," a source tells The Sun.

"That meant the two couples walking into church together as the Fab Four just like they had last year. Yes, it was awkward and uncomfortable given what's gone on over the past 12 months," the source adds. "But the alternative of even more negativity on Christmas Day wasn't worth thinking about."

See below for more photos of the royal family attending Christmas Day service.