American and Australian labour leaders are visiting Auckland this week to boost international support for 300 striking waterside workers, as unionists start picketing ships elsewhere.
Those on strike will meet this afternoon to be addressed by Ray Familathe, the North American vice-president of the International Longshoremen and Warehouse Union.
Mr Familathe was in the thick of a mammoth dispute at Long Beach Harbour in Los Angeles in 1998 in which his longshoremen blockaded a ship carrying Australian meat loaded by non-union labour, forcing it back to Melbourne.
The operator of the Columbus Canada was unable to find any other United States port prepared to accept the shipment, and was allegedly even refused service in Auckland.
Leaders of the Maritime Union of Australia, which was the beneficiary of the longshoremen's support and which is warning of trouble across the Tasman for ships unloading cargo in Auckland during the current strike, are also due here this week.