NEW YORK – Employees at fast-food restaurants will not go into work in around 100 cities across the country tomorrow in what organizers paint as the biggest strike for higher wages so far, the Associated Press reports. The last concentrated strike happened in about 35 cities in late August ahead of the Labor Day weekend.

Thursday’s protests would continue the momentum started about 12 months ago to protest the hardship of living on a minimum wage. The federal minimum wage is $7.25 an hour, although numerous states and cities have enacted higher minimum wages. In November, New Jersey voters passed an increase to the state’s minimum wage to $8.25 per hour. In 2013, Rhode Island, New York and California all saw minimum wage increases.

Labor unions are organizing the strikes as part of a movement to bolster membership, which has sagged in recent years. In November, President Obama mentioned he supports a Senate bill that would jack the federal minimum wage to $10.10 an hour. However, those striking want a $15 per hour minimum wage.

The summer demonstrations drew mixed results, with some restaurants at a standstill, while others able to operate. The National Restaurant Association said the protests were a “campaign engineered by national labor groups,” and consisted of union employees instead of fast-food workers.

Fast Food Forward, organized by Kendall Fells, said the strike would be in around 100 cities, with an additional 100 locations having demonstrations. “They [employees] understand they're not going to win from a one-day strike,” said Fells.