Working people the world over have celebrated the first of May as “International Labor Day” since 1886, when workers in the United States struggling for an eight-hour day staged a May 1 national protest.

Thanks to the new deal America’s auto workers have signed with Detroit’s Big Three — Ford, GM, and Stellantis — that day could have new global significance. Their watershed new contracts all set April 30, 2028 as their expiration date.

If May 1, 2028 arrives without signed contracts for America’s unionized auto workers, UAW president Shawn Fain has made plain, these workers don’t plan on walking out alone.

“We invite unions around the country to align your contract expirations with our own so that together we can begin to flex our collective muscles,” says Fain. “If we’re going to truly take on the billionaire class and rebuild the economy so that it starts to work for the benefit of the many and not the few, then it’s important that we not only strike but that we strike together.”

But that May 1 day is clearly inviting coordination beyond the national level.

The May Day that workers worldwide have so long honored, Fain notes, has always been “more than just a day of commemoration, it’s a call to action.” And the labor movement worldwide is showing real signs of acting more in strategic concert.

Within the global auto industry, no corporation more embodies the inequality of our corporate world than the non-union Tesla. Under CEO Elon Musk, the world’s richest single individual, Tesla pays wages that run substantially below those of Detroit’s Big Three, and that gap will only widen after the new UAW contracts go into effect.

The new UAW contracts, predicts German Bender of the Swedish think-tank Arena, could well “boost union interest among Tesla workers.”

That interest already seems to be growing. On the final Friday of the UAW walkout in the United States, workers at Tesla-owned servicing shops in Sweden went out on strike — after five years of fruitless attempts to get Tesla’s Swedish subsidiary to reach a bargaining agreement. That strike has now spread to all auto shops in Sweden that do work on Tesla cars.

This Swedish walkout represents the first formal strike against Tesla anywhere in the world. And the challenge to Tesla may be spreading. Germany’s largest union, Bloomberg reports, is hoping to organize a 12,000-worker Tesla plant near Berlin.

Tesla’s over 120,000 workers worldwide will see plenty to like in the new UAW contracts in the United States. At Ford, workers who started as temps making $16.67 an hour will automatically move to permanent status and an hourly wage rate of at least $24.91. That rate will hit $40.82 by the contract’s end, and any inflation between now and then will kick that rate higher.

Workers in major American industries haven’t seen gains that stunning since the middle of the 20th century, a time when the chief executives of America’s largest corporations averaged only just over 20 times the compensation of their workers. That gap today, the Economic Policy Institute calculates, is now running nearly 350 times.

But the greatest significance of the new UAW auto industry contracts may be the impact these bargaining triumphs will have on the future. These agreements could become the single most important step to a more equal world that any of us have ever seen.

The giants of American auto manufacturing, as Fain puts it, “underestimated” their own workers’ capacity to unite and fight together.

“We have shown the companies, the American public, and the whole world that the working class is not done fighting,” headds. “In fact, we’re just getting started.”

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