->''"I can not approve that monarchs desire to rule over the conscience of their subjects and take away from them their freedom of belief and religion."''
-->--'''RebelLeader William of Orange'''

The EightyYearsWar or the Dutch War of Independence (1568-1648), was a war fought as the name suggests, over the course of eighty years and for the independence of the [[LaResistance Dutch Republic]] (a precursor to modern day Netherlands) against the [[TheEmpire the western/'Spanish' Habsburg realms]]. The leaders of the rebellion cited the strict control of the monarchy over the people as their main incentive to rebel, mainly in terms such as freedom of religion, thought and the matter of taxation. [[RealPolitik More cynically-minded observers generally put the taxes first]].

The event that is said to have set off the revolution is the public execution of the statesmen Lamoral, Count of Egmont and Philip de Montmorency, Count of Hoorn, on the main square in Brussels on June 5, 1568. The two were executed for their resistence to the founding of [[UsefulNotes/TheSpanishInquisition a Castilian-style Dutch Inquisition]] that would probably [[RealPolitik be used to weed out opponents of the monarchy]] much as in Castile and Aragon. William the Silent then became the leader of the rebellion and managed to escape execution using charisma and political intelligence until he could go into hiding, though he was later assassinated by a spy.

Subsequently, the Dutch revolt would break out in 1567 leading to the rise of William of Orange. Under his command hostilities between the Dutch Republic and the Spanish Habsburg realms. The conflict would manifest as multiple skirmishes, minor battles, ''incredibly'' long and tedious sieges - most of which went nowhere.

The Dutch Republic was finally given some recognition when the two belligerents contracted the Twelve Years' Truce in 1609. The peace lasted until 1619 when the UsefulNotes/ThirtyYearsWar broke out, returning the Dutch Republic and the Spanish Empire to opposition as the Dutch intervened. With the resolution of the Thirty Years' War, the Dutch gained French allies who aided them in a defense against the Spanish. With the Spanish forces spread far and thin they eventually were cut off from the Dutch. Peace negotiations began January 1646 which eventually lead to a peace agreement.

The war was followed by a slight upheaval of the Dutch Republic's political system. The Spanish Empire's reputation was greatly hurt by the loss, but persevered nonetheless. The war also had little effect on the Spanish-Portuguese war.

TheOtherWiki has a incredibly extensive and more specific article on the Eighty Years War. See also the UsefulNotes/ThirtyYearsWar and the DutchPortugueseWar.
!! The following tropes are used to describe the period and its events:
* AltumVidetur: Invoked by Vargas to justify his cruelty:
-->''Haeretici frexentur templa, boni nihil fecerunt contra; ergo debent omnes patibulari''[[labelnote:Lat.]]"[[BurnTheWitch The temples were burned]] by [[TheHeretic the heretics]], [[AccompliceByInaction good [Catholic] did not do anything against it]], [[KillThemAll so everyone should go to the gallows]]." [[/labelnote]]
* ArmorIsUseless: The [[http://en.wikipedia.org/wiki/Camisado camisados]].
* BadassBookworm: Marquis Spinola. He actually learned to command armies by [[ButIReadABookAboutIt reading books.]]
* BlingOfWar: Since the armies were always moving and soldiers could be drafted for many years, bags and safes were often impractical. Instead, soldiers (specially veteran ones) would walk to the battlefield dressed in fancy clothes plus all their gold in the form of necklaces, rings, bracelets... The bodies of the fallen were extensively pillaged.
* BoringInvincibleHero: The Spanish Tercios remained undefeated in battle till the Battle of the Dunes in 1600, a good century after their creation. When news of the defeat came to Spain, the Royal Court was understandably shocked.
* ButNotTooForeign: The Dutch were happy while the Empire was ruled by Flemish-raised {{Omniglot}} Charles V. When he was succeeded by his die-hard Castilian son Philip II, on the other hand...
* ButtMonkey: The Portuguese. United with Spain in 1580, they proceed to lose lots of their colonies to the Dutch in the following years while their Spanish overlords couldn't care less.
* DashingHispanic
* {{Determinator}}: The both the Spaniards and the Dutch qualify in the Siege of the Dutch city Leiden, although the latter almost takes it UpToEleven. When the Spaniards couldn't get past the city's walls, they stayed there surrounding the city for ''months'', preventing anything or anyone from leaving or entering. As a result, the people of Leiden ran out of food, causing mass starvation. Nevertheless, Leiden ''never'' surrendered, and the mayor, Pieter van der Werff, famously [[IAmAHumanitarian offered his own arm as food]] to inspire his citizens and keep them from giving up. In the end, it paid off for the Dutch.
* EagleSquadron: English volunteers. Of course they came on their own. Good Queen Bess [[ImplausibleDeniability did not send them]]. She [[HypocriticalHumor always desired the best of friendship]] with Spain. Didn't she?
* EarthIsABattlefield: Arguably, the first conflict to be fought over all continents (except, maybe, Oceania).
** Not even that exception. Sir Francis Drake would have sailed through there looking for {{Plunder}}
* EliteMooks: In a effectivity+reliance scale, the Spanish army chain was roughly Catholic Flemish << Germans << Italians << Iberians. Of these, the scary guys were the veterans serving on the Tercios, which usually had a 20+ years old experience and had been serving on the army since they were 13.
* TheEmpire: Spain
* TheEngineer : There were dozens of sieges in this war and star players on both sides were the engineers. As the Dutch lived below sea level and had been centuries fortifying themselves against ''the ocean'' it was fairly easy to shift to dealing with mere humans.
* EyepatchOfPower: The smoke produced by the muskets of the time damaged extensively the handler's right eye. If you didn't wear an eyepatch in battle, you certainly would upon retirement.
* ForeverWar: Well, it lasted "only" 80 years. Then again, the average life expectancy of the time was barely above 40, so it's understandable it felt this way.
** Colleges in Dutch cities had [[TheEngineer military engineering]] courses for generations which took for granted the assumption that graduates would right away head for what later ages would call "The Front".
** Consider how it relates to English history. Early on TheSpanishArmada was prompted partly because of Elizabeth's (limited) support for the Dutch rebels. Later, the Dutch Republic considered uniting with the English Republic under Cromwell (but ended up fighting them instead). How many wars lasted so long that everyone from the Tudors to the leaders of the English Civil War were peripherally involved in them?
* HadToBeSharp: The Spaniards were trained by generations of war against the Moors. The Dutch by living below sea-level and being dependent on the sea for their survival.
* HonorBeforeReason: One Spanish general complained that it was hard to get his soldiers to dig trenches because digging was ''commoners work'' and they of course were above that. By contrast,all the Dutch had to do was pay. Dutch would [[ProudMerchantRace do anything for money.]]
* [[{{HangingJudge}} Hanging Judges]]: Del Río and Vargas, see AltumVidetur.
* ImprovisedWeapon: Dutch would blow up their dikes to flood Spanish trenches.
* KangarooCourt: The Council of Troubles, a special tribunal instituted by Spain to to punish the ringleaders of the political and religious "troubles" in the Netherlands, had [[OneJudgeToRuleThemAll Two Judges To Rule Them All]] that were such [[{{HangingJudge}} Hanging Judges]] that it was renamed The Council of Blood by the population.
* KnightTemplar: Phillip II. He absolutely ''hated'' Protestants.
* MoneyDearBoy:
** The German mercenaries on the Spanish lines (called "Tudescos") were on it just for the money, and walked away or revolted as soon as payment didn't arrive as scheduled. In contrast, the Spaniards were noted to continue fighting even after months without pay, and sometimes when they had [[DeTerminator barely anything left]] ''[[DeTerminator to eat]]''.
** One of the main reasons the alliance with Queen Bess fell through: The man she sent to the Netherlands (Robert Dudley) insisted the Dutch merchants stop doing business with the Spaniards. The Dutch vehemently defended their right to sell weapons to the very people shooting at them.
* MoreDakka: The TropeCodifier. The Habsburgs had perfected the Tercio as a square MightyGlacier favoring the [[BladeOnAStick pike]] in the Pike and Shot equation. The Dutch and their allies saw this, [[DangerouslyGenreSavvy figured they couldn't outmelee them]], and decided to go lean on Shot, with units consisting of thin, flexible lines that had few pikes but lots of guns for maximum Dakka. They also produced ''lots'' of cannons. They [[WeaponOfChoice really liked]] cannons.
* MyCountryRightOrWrong: Many if not most Spanish soldiers did not care at all about the Dutch. In their opinion, if they wanted to be "heretics" and go to Hell it was their problem. They still took the arms on behalf of their king because they understood it was their duty.
* {{Pirates}} : Sea Beggers. And of course the Sea Beggers always wanted
** {{Plunder}}
* NightmareFuel:
** That spy that assassinated the Dutch equivalent of the Founding Fathers? He didn't get away. His punishment was... extensive.
** During sieges, surgeons would pay well to any scavenger who brought a goodly supply of human fat [[{{Squick}} scraped from corpses]] to use as balm. One doubts that all the fat donors were quite dead when they made the donation.
* [[OneJudgeToRuleThemAll Two Judges To Rule Them All]]: The Council of Troubles had 12 judges, but only two (spanish) judges, Del Rio and Vargas, had vote.
* PoorCommunicationKills: The anti-Catholic riots known as the 'beeldenstorm' had already been quelled, in part by Willem of Orange himself, by the time Phillip sent the [[KnightTemplar Duke of Alba]] to the Netherlands to restore order, but that news hadn't reached Phillip. A large dose of UsefulNotes/TheSpanishInquisition later, the rebellion started up again, [[NiceJobFixingItVillain this time led by that same Willem of Orange]].
* ProudMerchantRace: The Dutch
* ProudWarriorRace: The Spaniards
* RapePillageAndBurn: What usually happened when a city fell to an army that had been besieging it for months - or years - with little to no pay.
* RebelliousRebel: Guess who
* TheRepublic: Of the United Netherlands
* TheSiege: This war had ''dozens'' of sieges.
** By coincidence [[UsefulNotes/WorldWarI another war]] had a lot of fighting in this same location. It took roughly the same form.
** The Low Countries had a reputation for being the most fortified region in the world. Centuries of sappers would hone their skills there.
* TheStrategist: Maurice of Nassau
* [[TrainingThePeacefulVillagers Training The Warlike Burghers]]: Dutch militia was quite formidable as militias go and had a strong sense of [[PatrioticFervor civic loyalty]] and the knowledge that their [[PapaWolf families]] were [[RapePillageAndBurn in for it]] if the enemy broke through. The Spaniards most definitely had their work cut out for them.
* UnwinnableByDesign: Little place over there, way isolated from other Spanish territories, with a north-south orientation, humid, cold, filled with fortresses and dikes, and easy access to mercenaries, markets and alliances in England, France, Sweden, and Denmark-Norway? Not surprising the modern Spanish view on this issue is pretty much this.
* UrbanWarfare
* VirginPower: [[UsefulNotes/ElizabethI Guess Who?]]
* WarriorPrince: Don Juan of Austria. Commanding here was his "reward" for winning the UsefulNotes/BattleOfLepanto.
!!Depictions in fiction

* The titular character in ''Literature/{{Alatriste}}'' is a Spanish veteran of the 80 Years War. The war is brought to the centerfront in the third book of the series, ''The Sun over Breda''.
* The setting of ''VideoGame/AgeOfEmpiresIII'' includes this period and has the Spanish and Dutch as playable factions, although it is mostlycentered around the conquest and colonization of the Americas.