Nirula's is India's oldest fast food restaurant chain.
 Based in North India and most popular in NCR Delhi, it was Delhi's first fast food restaurant, opening in Connaught Place in 1977.
 Today it has over 70 outlets in NCR Delhi, Bihar, Haryana, Madhya Pradesh, Punjab, Rajasthan and Uttar Pradesh states, offering a “Desi” version of Western fast food items.
 Nirula's success has led them to branch out into other ventures which include, ‘Potpourri’, an Indian cuisine, casual dining restaurant chain; ‘Nirula's 21’, ice cream parlour chain, in addition to pastry shops and two hotels in Noida and Panipat.
 Recently Nirula's opened its first franchise in Patna, their first outlet in the entire east zone.
A fast food restaurant, also known as a quick service restaurant (QSR) within the industry, is a specific type of restaurant that serves fast food cuisine and has minimal table service.
 The food served in fast food restaurants is typically part of a "meat-sweet diet", offered from a limited menu, cooked in bulk in advance and kept hot, finished and packaged to order, and usually available for take away, though seating may be provided.
 Fast food restaurants are typically part of a restaurant chain or franchise operation that provisions standardized ingredients and/or partially prepared foods and supplies to each restaurant through controlled supply channels.
 The term "fast food" was recognized in a dictionary by Merriam–Webster in 1951.
Western-style fast food in China is a recent phenomenon, dating back only to January 1984 when McDonald's opened its first outlet in Taipei, Taiwan Province in the Republic of China.
 In October 1987, Kentucky Fried Chicken, still the most popular fast food chain in China, established its first restaurant in the People's Republic of China (mainland area), located in Beijing.
 KFC was later followed by McDonald's, which remains China's number two foreign fast food option.
 In addition to American style fast food, China has many local options, including a slew of restaurants that attempt to imitate fast food, particularly KFC.
Subway is a privately held American fast food restaurant franchise that primarily sells submarine sandwiches (subs) and salads. Subway is one of the fastest-growing franchises in the world and, as of June 2017, has approximately 45,000 stores located in more than 100 countries.
 More than half of the stores are located in the United States.
 It is the largest single-brand restaurant chain and the largest restaurant operator in the world.
When the predecessor of international fast food restaurant chain Burger King (BK) first opened in 1955, its menu predominantly consisted of hamburgers, French fries, soft drinks, milkshakes, and desserts.
 After being acquired by its Miami, Florida franchisees and renamed in 1954, BK began expanding its menu by adding the Whopper.
 The company did not add another permanent hamburger to its menu until the introduction of the Big King sandwich in 1996 in response to McDonald's Big Mac sandwich.
 The company began experimenting with premium hamburgers, made from higher quality ingredients, in 1978 with the introduction of its Specialty Sandwich product line.
 The products were some of the first designed by a fast food restaurant chain that were intended to capture the adult market, members of which would be willing to spend more on a higher-quality product.
 However, it wasn't until 2002 when the company began to work on a premium burger in earnest.
 On the value side, Burger King first started offering sliders to its menu in the mid-1980s and offered them off and on for the next twenty years.
Subway Israel (Hebrew: סאבוויי‎ ‎ ) was a fast food sandwich chain, an international franchise of Subway.
 Opening in 1992, they expanded to 23 branches around Israel before they closed in 2004.
Restaurant Brands International is a Canadian multinational fast food company.
 Formed in 2014 by the $12.5 billion merger between American fast food restaurant chain Burger King and the Canadian coffee shop and restaurant chain Tim Hortons, and expanded by the 2017 purchase of Louisiana-based and themed Popeyes Louisiana Kitchen, the company is the third-largest operator of fast food restaurants in the world.
 The company is based alongside Tim Hortons in Oakville, Ontario, but both chains retain their existing operations and headquarters in Oakville and Miami respectively.
 The merger focused primarily on expanding the international reach of the Tim Hortons brand, and providing financial efficiencies for both companies.
International fast-food restaurant chain Burger King and its Australian franchise Hungry Jack's have had a variety of grilled chicken sandwiches in their product portfolio since 1990.
 The BK Broiler was the first iteration, and was one of the most successful product introductions in the fast food industry to that point in time.
 However sales dropped in the following two years, and the product was reformulated and renamed to the Chicken Whopper to align the product with the company's Whopper Sandwich.
 A change of ownership of Burger King in 2004 prompted another reformulation of the product into the BK Baguette product line that focused on a more health-oriented product.
 This new formulation proved unpopular and was replaced in 2005 with the TenderGrill chicken sandwich.
 The TenderGrill sandwich was introduced as part of a series of sandwiches designed to expand Burger King's menu with both more sophisticated, adult oriented fare and present a larger, meatier product that appealed to 24- to 36-year-old males.
 Burger King was the first major fast food chain to introduce a grilled chicken sandwich to the marketplace, beating rivals Wendy's by six months and McDonald's by four years.
 These two chains also went through a series of reformulations and naming schemes for their grilled chicken products.
Fatburger Inc. is an American fast casual restaurant chain.
 Its tagline is "The Last Great Hamburger Stand".
 While it is a fast food restaurant, the food is cooked and made to order.
 Some Fatburger restaurants have a liquor license, as well as Fat Bars.
 Its franchise headquarters are in Beverly Hills, California.
 In addition to the United States, the chain operates in 19 other countries.
The Subway $5 footlong promotion was a promotion by the fast food restaurant chain Subway, which was launched in the United States in 2008 by offering footlong (30 cm) submarine sandwiches for US$5.
 Coinciding with the Great Recession, the promotion was very successful for the chain, spurring competitors to make similar moves to cut prices to attract customers.
 The promotion also helped start an ongoing trend of round price points on consumer goods.
 However, the price increased 20% to $6 in 2014 and subsequently the price was raised to $7 in 2017.

Question: The fast food sandwich chain Subway Israel is an international franchise of this American fast food restaurant franchise that has stores in how many countries?
Answer: 100 countries