Starbucks union's strike will expand through Christmas Eve to a dozen metro areas, while the Teamsters union says workers for Amazon at a California airport have joined other workers protesting.

The teamsters say they represent 10,000 workers and contractors and that they are demanding better pay and working conditions. However, Amazon says the protesters are not its employees.

Thousands of Starbucks baristas and delivery drivers for Amazon are protesting the respective retail giants nationwide during the busiest shopping season of the year, according to their unions.

Thousands of Starbucks workers, as well as delivery drivers for Amazon, are picketing just days before Christmas.

Why are Amazon and Starbucks workers striking over the holidays? “This is a time when both companies make a lot of money,” one expert said.

ABC News’ Trevor Ault and Sean M. O’Brien, president of the International Brotherhood of Teamsters, discuss the Amazon workers hitting the picket line in hopes of a new labor agreement.

Delivery drivers for Amazon picketed outside seven facilities as part of a strike organized by the Teamsters seeking to negotiate with the company on benefits, wages and workplace safety conditions.

The Teamsters' strike against Amazon began Thursday morning at several facilities in New York City, Atlanta, California, Illinois and elsehwere.

The Teamsters said the strike will begin Thursday at several facilities, including in New York City, Atlanta, California and Illinois.

Delivery drivers for Amazon walked off the job just days before the holidays, accusing Amazon of "insatiable greed." Amazon said the union is pushing a false narrative and said there is no impact.

ABC News’ Faith Abubey reports on what the Teamsters union is calling the "largest strike against Amazon in U.S. history.”

Less than a week before Christmas and the start of Hanukkah, the timely delivery of holiday gifts was thrown into jeopardy as thousands of Amazon workers went on strike.

The settlement requires that Amazon adopt "corporate-wide ergonomic measures" to reduce the risk of injuries to workers.

The settlement requires that Amazon adopt "corporate-wide ergonomic measures" to reduce the risk of injuries to workers.

The Teamsters said workers will begin striking at Amazon facilities across the country in what the union calls the largest strike against the online shopping giant less than a week before Christmas.

Amazon Web Services will invest another $10 billion to bolster its data center infrastructure in Ohio

The move ahead of the holidays could threaten if customers receive gifts on time.

The unprecedented vote follows a “Make Amazon Pay” strike which lasted between Black Friday and Cyber Monday.

Workers won a headline-grabbing victory in 2022, but remain without a contract.

Workers in more than 20 countries, including the U.S., are demonstrating over increased wages, improved working conditions and the right to unionize.

Amazon employees in 20 countries are preparing to protest on Black Friday.

The worldwide protests, organized by UNI Global Union, are targeting one of the biggest shopping weekends of the year.

Shop Amazon deals across home, tech, fashion, beauty and more.

President Joe Biden toured the drought-shrunken waters of the Amazon River’s greatest tributary Sunday as the first sitting American president to set foot in the legendary rainforest.

Amazon Haul offers a variety of items priced at $20 or less.

Amazon Haul is  a convenient shopping experience accessible through the Amazon app or Amazon website by searching "Haul."

Stock up on all your beauty, body and hair care needs with these deals from bestselling brands during Amazon's Holiday Beauty Haul.

Lifestyle and beauty expert Milly Almodovar drops by to share the hottest product deals for October’s Prime Big Deal Days.

Amazon will offer special discounts across a wide range of top categories.

ABC News’ Alexis Christoforous reports on the “Black Friday of October” as Amazon Prime deal days are set to begin with big box retailers coming out with competing sales.

Amazon announced it will debut a low-cost, private-label brand aimed at competing with rivals, including Walmart and Target.

Tech and retail giant Amazon has launched Amazon Saver, a new no-frills private label for groceries, plus new discounts for Prime members.

ABC News Live’s 2024 "Deal Drop Days" begin, highlighting the deals you don’t want to miss from beloved brands to viral TikTok favorites.

Amazon Prime Day 2024 offers deals on must-have Apple items such as Macbooks, iPads, Apple Watches and much more.

Shop beauty and fashion Amazon Prime Day deals across multiple brands before the sale ends.

The report released by Sen. Bernie Sanders, I-Vt., comes the week of Amazon Prime Day.

Here's everything we know so far about Amazon Prime Day 2024, which takes place July 16-17, and early deals that you can shop right now.

Here's what to know and expect from the 2024 Amazon Prime Day sale, which takes place July 16-17, plus shop early deals.

Prime members will reportedly have access to travel deals up to two weeks before Prime Day. ABC News' Rhiannon Ally has the details.

Plus, airline prices expected to skyrocket, and Dr. Pepper ties Pepsi as the No. 2 soda brand in the country.

The companies announced that Grubhub+ will be an ongoing offer for Prime members, with one perk being that that they can order food directly on Amazon's website.

Videos will include ads whenever users hit pause, unless users pay an extra $3.

Amazon says it's shattering delivery speed records, fast-food restaurants in California are hiking their prices, and Zoom meetings may not have taken the place of in-person business meetings after all.

The new feature creates a playlist using artificial intelligence.

The company is getting rid of the “Just Walk Out” technology at its U.S. grocery stores.

Luna Lauren Vélez talks about her role in "American Rust: Broken Justice," including her reservations before filming and working with the cast.

The company will offer same-day delivery to New York City and the Los Angeles area, which will join several other cities where the option is already offered.

Amazon's 2024 Big Spring Sale offers deals on Amazon devices now through March 25.

Lifestyle and beauty expert Milly Almodovar brings an Amazon Spring sale from kitchen curtains to a salon flat iron.

Lori Bergamotto is back with more great offers on a knife set, label maker, wet/dry mop and more.