History Main / ThisMeansWar

* In the ''WebAnimation/DeathBattle'' spinoff, DBX has this be the opening line of the fight between [[WesternAnimiaton/LooneyTunes Daffy]] and WesternAnimation/DonaldDuck. Naturally, it's Daffy who says the line after Donald shoots him with his Shotgun.

* In the ''WebAnimation/DeathBattle'' spinoff, DBX, one particular episode, has this be the opening line of the fight between Daffy and Donald. Naturally, it's Daffy who says the line after Donald shoots him with his Shotgun.

* In ''It's Tough to be a Bug'' at the Ride/DisneyThemeParks, Hopper crashes Flik's presentation and states to the human audience how much he hates them for the way they've mass-murdered bugs and portrayed them as monsters, as well as declaring that he won't put up with humans any longer. He then exclaims, "'''[[PunctuatedForEmphasis THIS. MEANS. WAR!]]'''", before sending his army of bugs onto the audience.

** President Roosevelt said something more true to the trope title: "Yesterday, December 7, 1941--a date which will live in infamy..." If this doesn't sound badass to you, remember what "infamy" means: what he essentially said was "ThisIsUnforgivable, and we shall never forget it." Less than one hour after those words were spoken, America officially declared war.

** The USA (Entente, 1917) wanted a say in the post-war peace settlement without sacrificing too many of her own people. It also wanted to make sure it and its bankers got paid (many if not most of the belligerents had borrowed heavily from the US).

** Russia (Entente) was unwilling to look bad on the international stage by refusing to support Serbia after so many perceived humiliations in recent decades, wanted to expand her influence in The Balkans, was sure she could defeat Austria-Hungary, and was confident France would help if Germany got involved.
** Germany (Central Powers) was deeply pessimistic about her chances in a war with France and Russia and hated to be dragged into a war over something as stupid as this, but was terrified of facing them alone.

* Averted in ''Series/Phoenix}}''. After a car bomb goes off killing a detective and burning alive a policewoman, the Inspector in charge of the investigation has to hold a press conference and is told to avert any suggestion that the [[CowboyCop police are going to war]] on [[CopKiller whoever is responsible]].

* Used somewhat frequently in ''WesternAnimation/{{SpongeBob SquarePants}}''

** In "The Krusty Plate" Spongebob is instructed to wash a plate and the fallowing scene ensues.

-->'''Arthur:'''I'm going to kill him.

* ''Series/{{Lucifer|2016}}'': After Maze throws a water polo hunk that the high-as-a-kite Linda was making out with:

* ''Film/WrongIsRight'' (1982). The US president uses this reason to invade the Middle East after two suitcase nukes are found in New York City (in the World Trade Centre, no less). However, the film is a parody of PatrioticFervor and {{Eagleland}} so this is just a PretextForWar.

* ''Film/WrongIsRight'' (1982). The US president uses this reason to invade the Middle East after two suitcase nukes are found in New York City (in the World Trade Centre, no less). However, the film is a parody of PatrioticFervor and {{Eagleland}} as this is just a PretextForWar.

-->'''President Lockwood:'''' War!

* ''Film/WrongIsRight'' (1982). The US president uses this reason to invade the Middle East after two suitcase nukes are found in New York City (in the World Trade Centre, no less). However, the film is a parody of PatrioticFervor and {{Eagleland}} as this is just a PretextForWar, as the real nukes were still in the Middle East.

* ''Film/WrongIsRight'' (1982). The US president uses this reason to invade the Middle East after two suitcase nukes are found in New York City (in the World Trade Centre, no less). However, the film is a parody of PatrioticFervor and {{Eagleland}} as this is a ploy to ensure the [[http://en.wikipedia.org/wiki/Wrong_Is_Right president's]] [[https://www.youtube.com/watch?v=7IUbBdcDEo0 re-election.]]

* ''Film/WrongIsRight'': The US president uses this reason to invade the Middle East after 2 nuclear warheads are found in New York City. However, the film is a parody of PatrioticFervor and {{Eagleland}} as the warheads were allowed into the city to ensure the [[http://en.wikipedia.org/wiki/Wrong_Is_Right president's]] [[https://www.youtube.com/watch?v=7IUbBdcDEo0 re-election.]]

-->"I fear that all we have done is [[AwakeningTheSleepingGiant awakened a sleeping giant]], [[OhCrap and filled it with a desire for vengeance."]]

** ''Literature/DeadBeat''. After finishing the job he was forced into by the [[OurVampiresAreDifferent Black Court Vampire]] Mavra when she blackmailed Murphy, Harry said this and threatened that if she ever went after Murphy or any other of his friends again he would take up every weapon he has to his potential and go after her and kill her. It has so far been taken seriously as she hasn't reappeared since. [[ChekhovsGun Yet]]

* ''LightNovel/OurLastCrusadeOrTheRiseOfANewWorld'': Alice says this word for word upon seeing acting lovey-dovey with Iska while spying on them.

* The trope as used in the WesternAnimation/LooneyTunes cartoons is referenced in ''Film/WhoFramedRogerRabbit'': WesternAnimation/DaffyDuck says the exact phrase when DonaldDuck drops a piano lid on his head during their [[strike:duet]] duel.