The British Army women's rugby union side are bracing themselves for a "buoyant" Royal Navy side in their Twickenham showdown this weekend.
It will be the first time two women's military teams have played each other at the home of English rugby.
You can watch or listen to both of the men's and women's Army v Navy matches with BFBS, with live coverage starting at 1:30pm on Saturday 30 April.
"I think the Navy are going to be physical, they’re going to really take it to us," says head coach Major Gemma Stonebridge-Smith.
The Army squad boasts internationals and Premier 15s club players, but the side's Captain Erica Mills says the Navy is a "force to be reckoned with" ahead of Saturday’s historic fixture at Twickenham.
"They’re definitely on an upward trajectory," she said.
"I feel like they’ve been invested in by the Navy – they’ve had a number of fixtures already this season, so that will not go unnoticed by us."
You can watch or listen to both matches with BFBS on Saturday 30 April - find out more details here.