They may have fought side by side for more than a century, but there will be no love lost between New Zealand and Australian soldiers when the Rugby World Cup final kicks off this weekend.
Troops from both countries will be glued to their screens across the world on Sunday morning (NZT) - with Kiwi personnel in every base from Bahrain to Kuwait and South Sudan watching.
But the tension may be especially high at the Taji military camp in Iraq where both Australian and NZDF troops are stationed together.
ADF Captain Matthew Daniell said the final could make for some "awkward" moments between the soldiers.
"We've formed some close relationships with the Kiwis during this trip, which has resulted in a friendly sporting rivalry between the two forces," he said.
The company of the HMNZS Te Kaha will also have to share the moment with their Aussie counterparts with the ship docked at Sydney.
Meanwhile, the NZDF's rugby team, the Defence Blacks, will be in London watching the final, having lost to the French in the International Defence Rugby Competition semi-final.