The New Zealand Defence Force is sending up to 70 staff and other resources to help clean up thousands of tonnes of rubbish scattered along the West Coast after an old landfill breached earlier this year.
Enormous amounts of rubbish went into the Cook River and carried into the ocean after an old Fox Glacier landfill breached following a major storm in March.
Defence Force staff will help Department of Conservation staff and volunteers clean up rubbish scattered across about 1,620ha of coastline and riverbed.
Rear Admiral Jim Gilmour, the Commander Joint Forces New Zealand, said the operation had been in the pipeline for three weeks and staff would arrive at the end of July to help for a month.
The NZDF would also use its helicopter and military vehicles to transport personnel and volunteers from Fox Glacier to various locations to collect bags of rubbish.