The three forces rugby league sides have found out their initial opponents in the Challenge Cup, after the 36-team first round draw took place at Wembley.
 
The Army and the RAF have swapped opponents from last year's first round, with the Army facing Siddal, who hammered the RAF 48-0 in last year's first round.
 
The RAF travel to Wath Brow Hornets - who beat the Army 20-8.
 
The Royal Navy, meanwhile, have been drawn at home against Featherstone Lions.
 
The draw was made by Leeds Rhinos star Tom Briscoe, Lance Todd trophy winner in last year's final, and Lizzie Jones, whose husband, Welsh international Danny, died from a Cardiac arrest while playing last season. 
 
Lizzie went on to sing 'Abide with Me' at the Challenge Cup final.
 
The ties will be played over the weekend of January 30-31.