National Fried Chicken Sandwich Day is Tuesday and McDonald's, Burger King, KFC, Del Taco have deals - USA TODAY

The Chicken Sandwich Wars of 2021 will heat up for National Fried Chicken Sandwich Day Tuesday.

Fast-food chains including McDonald's, Burger King and KFC have specials for the made-up food holiday, held annually on Nov. 9.

McDonald's released three new chicken sandwiches in February and Burger King rolled out its Ch'King chicken sandwich in June. KFC also added a new chicken sandwich this year.

The major chicken sandwich war was launched in August 2019, a week after Popeyes launched its New Orleans-style fried chicken sandwich, which was its first nationwide chicken sandwich. The chain then started a viral Twitter feud with Chick-fil-A and other restaurants.

The nation's chicken wars and cravings for comfort food during the pandemic have made poultry so scarce and expensive that some restaurants have had to limit chicken sandwiches, wings and tenders. Others have made changes to menus and promotions.

The next poultry conflict could be finding your Thanksgiving turkey, especially if you're looking for a smaller bird.

Chick-fil-A doesn't have a National Fried Chicken Sandwich Day offer, the chain shared with USA TODAY but some locations may have specials Tuesday. Plus, you can earn rewards with its loyalty program.

But on Tuesday, Chick-fil-A launched a way to get a free Peppermint Chip Milkshake for you and a friend with a new holiday campaign at EvergreenHills.com. At the site, there's a short film and you can sign up to get a printed recipe card with the free shake that will be mailed, while supplies last.

Chick-fil-A told USA TODAY that the recipe cards with the free shake coupons will take approximately seven to 10 business days to arrive and you can choose to have both cards sent to you or one to a friend. They are shipped for free and no purchase is necessary to redeem the free shake offer.

Church's Chicken released its new Texas-Cut Bacon Chicken Sandwich last week and is giving it away free Tuesday with DoorDash orders of $20 or more.

For the launch of the new chicken sandwich, the chain also is gathering signatures for its national Change.org petition to reinstate Bacon, Texas and get it back on the map.

Del Taco's Del Yeah! Rewards members get a BOGO Crispy Chicken Taco offer Tuesday. Rewards registration is required to access deals and there's a limit of one offer per customer.

Kentucky Fried Chicken is celebrating National Fried Chicken Sandwich Day with free chicken sandwiches on Uber Eats with a $15 minimum order. Choose from a free original or spicy KFC Chicken Sandwich.

Buy an eligible McDonald's chicken sandwich, which includes the Crispy Chicken Sandwich, Deluxe Chicken Sandwich and Spicy Chicken Sandwich, and get a medium fries and a medium soft drink for free with an offer in the fast-food chain's app.

Publix Deli's Crispy Chicken Tender Bacon Sandwich is buy-one-get-one-free Tuesday.

New Zax Fanz Club members get a free Signature Sandwich when downloading the Zaxby's app for the first time. This offer is available systemwide at participating locations while supplies last.

Cotton Patch Cafe: Get the Chicken Fried Chicken Sandwich with a side of fries for $9.

Farmer Boys: From 2 p.m. to close Tuesday, get the chain's Loaded Classic Fried Chicken Sandwich or the Loaded Fiery Fried Chicken Sandwich for $5 each. Limit two per customer, while supplies last.

Jollibee: The chain is offering people the chance to try its Chickenwich for free. "Over the past year, people might have faced chicken sandwich woes from other restaurants that range from dealing with soggy, dry, or bland chicken patties to sad buns," the company told USA TODAY. "In return for any chicken sandwich distress they might have suffered, consumers can head to ChickenSandwichLawyer.com and enter their name and email to see if they are eligible to receive a free, crispy, juicy and tasty Jollibee Chickenwich - all while supplies last, and only at U.S. locations."

Peet's Coffee: The chain says its Chicken & Waffles Sandwich is on sale until early January.

More deals: Individual franchises of national chains might also have freebies and specials for National Fried Chicken Sandwich Day.

Follow USA TODAY reporter Kelly Tyko on Twitter: @KellyTyko. For shopping news, tips and deals, join us on our Shopping Ninjas Facebook group.