Global dockworker action spans 113 ports, risks 40,000 containers

By Tom Whitfield

More than 25 unions are staging strikes and demonstrations at 113 ports across 22 countries and territories; organizers estimate up to 40,000 containers could be delayed.

The worldwide action is underway under the banner “Dockworkers do not work for war.” It has expanded sharply from a smaller mobilization involving 20 ports across seven countries in February. Participation alone does not show how much cargo will stop; organizers estimate that participating unions handle around 40% of Mediterranean container traffic.

Where the action is concentrated

Major gateways involved include:

• Hamburg, Le Havre, Marseille, Genoa and Gioia Tauro.
• Piraeus, Tangier Med and Mersin.
• Nhava Sheva in India.

France’s CGT has called a 24-hour walkout across approximately 24 ports. Its forecast: “as much as 95% of national port activity could be halted.” That estimate describes the CGT’s national forecast, not a confirmed industrywide stoppage.

Italy has registered a nationwide 24-hour ports strike, coinciding with a general strike affecting other transport sectors. The synchronized action has the potential to create a broader national logistics interruption than a stoppage at selected gateways.

In Greece, seafarers’ unions have called 24-hour stoppages expected to disrupt ferry services at Piraeus, Rafina, Lavrio, Patras and Igoumenitsa. Their target is ferry services rather than the wider container-handling campaign.

The mix matters. A national port walkout can interrupt cargo movement and vessel access across an entire country, while the Greek stoppages concentrate on ferries. At other participating locations, organizers may stage demonstrations without halting cargo operations. The same 113-port headline therefore conceals very different effects on capacity.

What does this change for shippers and carriers?

For shippers, the immediate exposure is a timing problem, not a universal halt: boxes could miss onward vessel calls and reach forwarders later than planned.

Carriers face uneven service disruption where stoppages halt cargo work, while the Greek action is directed at ferry services. Forwarders should check onward connections through the named gateways before committing cargo to affected routings.

The 40,000-container estimate remains a scenario, not a confirmed backlog. Some ports are holding demonstrations rather than stopping cargo operations, and Genoa’s port authority expects relatively limited disruption. That leaves commercial exposure concentrated where labor action actually interrupts cargo handling; elsewhere, the protest may mainly add uncertainty.

For carriers, simultaneous action across several gateways creates a scheduling problem beyond any single closure: cargo may arrive late for a connecting service, and delays can pass through the network as sailings bunch. A box moving through two affected gateways can therefore face more schedule pressure than one moving through a single stoppage location.

Forwarders need to distinguish a demonstration from a terminal stoppage and check onward connections through Hamburg, Le Havre, Marseille, Genoa, Gioia Tauro, Piraeus, Tangier Med, Mersin and Nhava Sheva. Capacity planning should concentrate on sites where action actually removes service, not on the protest’s headline port count.

The demands behind the stoppages

The campaign primarily opposes military cargo shipments through civilian ports. For military cargo shippers, that makes port access and routing policy the central commercial issue, rather than handling conditions alone. Alongside that objection, participating unions demand improved wages, working conditions and protections against automation.

Those demands give port operators and employers a broader labor agenda, but they do not settle how much capacity comes out. A port can hold a large demonstration while cargo operations continue; another can halt operations for 24 hours. That distinction will determine whether the 40% Mediterranean traffic estimate translates into delayed boxes.

A record claim without a verified record

The mobilization ranks among the largest coordinated port-labor actions in history and is unprecedented in scale for this particular campaign. Claims that it is the world’s largest port strike remain unverified.

An international solidarity campaign for Liverpool dockworkers in January 1997 involved 105 ports and cities across 27 countries. The current action covers 113 ports across 22 countries and territories, so its port count exceeds the 1997 benchmark, but participation does not measure stopped cargo or vessel calls.

No further worldwide coordinated strike date has been announced.

Two later labor tests

Separately, a potential November 1 strike involving 250 port watchmen threatens operations at Los Angeles and Long Beach, although negotiations to avert the stoppage continue. Italy also faces another national general strike on November 20, distinct from the current nationwide ports action.

Those dates matter because they sit outside the 113-port protest and could tighten capacity independently. The U.S. stoppage remains contingent on negotiations, while no worldwide follow-on date has been set.

The near-term capacity test is concrete: the threatened November 1 stoppage involving 250 port watchmen at Los Angeles and Long Beach, followed by Italy’s November 20 general strike. Until another worldwide coordinated date is set, actual stoppages, not the 113-port headline, will determine how much of the estimated 40,000-container exposure becomes a real delay.