Britain will play title holders New Zealand at Twickenham Arena in September in anticipation of October's WXV 1 competition. John Mitchell's side beat the Dark Plants to secure the debut WXV 1 title on New Zealand soil when the sides last met in November.
The match will happen on 14 September at 15:00 BST and will be their first at Twickenham starting around 2012, when Britain won 32-23. Britain will likewise take on France seven days sooner at Gloucester Rugby's Kingsholm Arena (15:00).
The Red Roses whipped France 42-21 in April to win a 6th continuous Ladies' Six Countries title. "We need to host and play against the best sides on the planet before the 2025 Rugby World Cup," said Britain commander Marlie Packer. "Our last two games at Twickenham have brought about the best two groups at any point kept in ladies' rugby, we need more.
"Playing the Dark Greeneries at the home of English Rugby is a unimaginable open door that doesn't come around time and again." Britain last played at Twickenham in April, when 48,778 allies watched them beat Ireland 88-10 in the Six Countries.