The Defence Force is facing an unexpected challenge ahead of ANZAC commemorations in Gallipoli.

About half the luggage of the 40-strong team is lost in transit at Dubai, including uniforms and instruments.

RSA CEO Marty Donoghue says he expects the team will come up with a backup plan ahead of tomorrow's event.

"I think the contingent will be really gutted it doesn't have its instruments and uniforms with them - but there is always a way you can solemnly remember and do a remembrance activity."

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