Fast food workers are from 40 nations will take part in a worldwide protest to push for a US$15 per hour wage and the right to form a union.

Taking part in the global protest are fast food employees from 40 nations, including 200 U.S. cities. Aljazeera reports that airport service, retail employees and adjunct professors would join the protest.

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Also taking part are the racial justice group #BlackLivesMatter and the green advocacy group 350.org.

The global protest comes a long way after the initial campaign was launched in November 2012 with 200 workers in New York City striking to push for the two demands.

On May 2014, solidarity rallies were held in 33 nation and 150 U.S. cities to further push the two demands. And in December 2014, low-salaried employees outside the fast food industry joined the pressure on employers to improve their pay to wages that could support families. Home health care workers, airport service employees and others joined them too.

Other low-wage labor campaigns adopted the core demands of the fast food industry, such as the campaign versus Walmart, backed by the United Food and Commercial Workers, and the home health care workers which is led by the Service Employees International Union.

Workers say they had enough of being underpaid.

"This isn't just our fight, it's for every hard-working person who is living on the brink," said North Carolina child care worker Corrine Hall. "We have strength in numbers. We won't stop until we are all paid better and we are listened to as early childhood educators."

Outside organized labor, the movement has also attracted supporters such as from the clergy who have joined it in protest in different American cities and also police-reform groups such as the Blackout for Human Rights.

Global protests are unnecessary if only there are more employers like Gravity Payments whose CEO, Dan Price, announced to surprised workers this week that he would cut his US$1 million pay and use company profits so that the base pay in the firm would be US$70,000. It would be phased over three years.

Price said cutting is pay is worth it because it would make the more than 100 workers happy and it would also build loyalty, reports News-record.com.

TagsFight for 15, Minimum Wage, worldwide protest, minimum pay, fastfood workers