Enemies setting aside their differences for a holiday. This is usually acknowledged by both sides as being a temporary agreement. Nine times out of ten the holiday in question will be Christmas, but it can apply to any holiday.
Contrast Busman's Holiday, Twisted Christmas, Horror Doesn't Settle for Simple Tuesday and An Asskicking Christmas. Compare with Merry Christmas in Gotham and Screw the War, We're Partying!. See also Holiday Pardon if a holiday issues a pardon for criminals.
- On the hundredth anniversary of the Christmas Truce of 1914, British supermarket chain Sainsbury released a short film focusing on two groups of British and German soldiers celebrating the brief moments of Christmas respite in the harsh, snowed-in trenches of the western front. There was also an accompanying featurette on the period context of the events and the making of the advert.
- Hetalia: Axis Powers has a strip about the famous Christmas Truce of 1914, showing England and Germany laying on the ground after the football/soccer game.
- Subverted in Magical Girl Lyrical Nanoha A's. The only reason that the Wolkenritter didn't attack Nanoha and Fate on sight when the two of them came to visit Hayate in the hospital on Chrismas Eve was for the sake up upholding the Masquerade. The second everyone else was out of view...
- Invoked in the Pokémon episode "Wobbu-Palooza!". Since Wobbuffet are incapable of attacking first, all the Pokemon Battles are forbidden during the Wobbuffet Festival.
- One issue of Rainbow Rowell's Runaways sees the team trying to throw a Christmas party while under house arrest by the Seed, their latest nemeses. Not wanting to be bad sports, they make sure that their guard, Gib, receives a present during the party. This ends up benefiting them, as Gib turns against the other members of the Seed, enabling them to survive the battle.
- Joyeux Noël, which is based off the Real Life Christmas Truce of 1914.
- In Snowpiercer, the guards briefly interrupt the axe fight in order to celebrate New Year's. Then they go right back to fighting. And then it turns out that the train, once every year, crosses a long tunnel and the guards are planning to exploit the resulting blackout.
- Buffy the Vampire Slayer: It's mentioned on the Halloween episode that most of the monsters on Sunnydale consider the day to be a "day off" (which is the reason Buffy and the rest of the Gang decide to go trick-or-treating). Unfortunately for the Slayer, it's more of an unwritten rule and Spike decides to disobey it. More unfortunately, Ethan Rayne enchants some costumes and turns Buffy (among others) into the people they disguised as, making her harmless. Unfortunately for Spike, Giles destroys the enchantment before he can do much more than gloat that he has Buffy corralled, which gives him a quite humiliating beat-down in response.
- "Twice Upon A Time", the Christmas Episode that served as the Twelfth Doctor's departure has him teaming up with his first incarnation and a WWI soldier. The soldier began the episode trapped in a trench with a wounded German soldier, both men prepared to kill each other. When the Doctor returns him to his time, he fudges it a bit so that the soldier returns a couple hours later than when he left, when the Christmas Truce was in effect.
- M*A*S*H had two episodes set during a Christmas truce.
- "Death Takes A Holiday", had Hawkeye, B.J. and Margaret trying to keep a mortally-wounded soldier alive long enough so that he wouldn't die on Christmas Day while Charles attempted to continue his family's tradition of anonymous giving to the poor.
- "'Twas The Day After Christmas" was a more light-hearted episode where the officers and enlisted men switched jobs for a day. Potter even mentions that they can do this because there is a Christmas Truce in effect so other than a few patients in Post-Op things are expected to be quiet.
- In "Snoopy's Christmas", the Red Baron has Snoopy at his mercy after a long dogfight. But instead of shooting him down he forces Snoopy to land and offers him a holiday toast, no doubt inspired by the actual Christmas Truce.
- Homestar Runner: In the Cheat Commandos' cartoon "Let us give TANKS!", the Cheat Commandos invite Blue Laser over for Thanksgiving.
- Big Hero 6: The Series: Zig-zagged in "The Present". When the team barge into a supervillain Christmas party looking for Hiro's present, Baron von Steamer insists that there be no fighting on the occasion. Unfortunately, Mr. Sparkles decides to snatch Hiro's present For the Evulz, inciting a battle that ends with the villains defeated.
- Boo Boom! The Long Way Home: Episode 24, which is the show's Christmas Episode, a group of German soldiers and a group of Allied soldiers both end up lost in the same woods, and through sheer coincidence, they run into each other at a cave Boo-Boom and his friends were using as shelter. When they notice Boo-Boom is in a bad condition due to the cold, both groups of soldiers put their differences aside to help him, which leads to all soldiers realizing they are Not So Different. After celebrating Christmas Eve together, they part ways on friendly terms.
- Danny Phantom: The ghosts have a rule that fighting is not allowed during Christmas. They're furious when they find out that the Ghost Writer broke the rule and attacked Danny (even going so far as to team up with Danny to teach him a lesson).
- In the Justice League episode "Comfort and Joy", the Ultra-humanite helps the Flash get toys for orphans on Christmas.
- Kim Possible's Christmas episode plays with this; both Kim and Shego take the holiday off, but Drakken has no qualms about launching a new evil scheme, causing Ron to try taking him on solo. Ultimately the two of them wind up crash-landing at the North Pole, are forced to cooperate to survive, and when they're found and rescued Drakken announces a formal truce after all.
- As mentioned above, the Christmas Truce of 1914.
- The Ancient Greek Olympics. Once every four years in the summer, city-states all across the region take a moment of ceasefire and head off to Olympia and present their best athletes for the competition. When the festivities end, the battles resume. According to legend, the ancient Greek city-states would set aside any wars they were fighting in order to honor the Olympic festivals held every four years. According to The Other Wiki:
It has been widely written that during the Games, all conflicts among the participating city-states were postponed until the Games were finished. This cessation of hostilities was known as the Olympic peace or truce. This idea is a modern myth because the Greeks never suspended their wars. The truce did allow those religious pilgrims who were traveling to Olympia to pass through warring territories unmolested because they were protected by Zeus.
- Inverted with the the Tet Offensive in the The Vietnam War. In 1968 the North Vietnamese army initiated large, coordinated attacks on many locations simultaneously on Tet (Vietnamese New Year), the biggest holiday of the year. This blindsided the US
- During recent civil wars in some Muslim countries such as Afghanistan and Syria, ceasefires have occasionally been attempted for the Islamic holidays of Eid al-Fitr and Eid al-Adha, though not every faction had declared or kept any promises to pause their fighting.