Which armies fight one another.

[The bearded one]

Plans or not, for creatures able to realigne tectonic plates, not being able to tell that his pyramid is in a risky area is a bit "fail" if you ask me

Just like a whole city's worth of Slann succumbs to plague, and fails to heal itself despite being able in all the winds of magic (including life), or an entire city's worth of Slann fails to divine a gigantinormous tsunami coming in (or even bothers to shield the city from it (they had giant shields defending against uncounted daemons), or else teleportimagic themselves away.

I believe it was a pyramid in Itza, but there is no mention of other structural damage in that city, and I doubt the Slann really did a geological survey before shifting the plates. They certainly didn't bother about the impact it had on the dwarfs, and the plan of the old ones has to be executed no matter the cost. Ironically enough, after the pyramid of that opponent collapsed a plaque was found in the ruins, which confirmed the shifting of the plates.

[Azaireal]

Given the nature of ruling powers in this pre-modern world, it is almost inevitable for nations not to have civil wars. Paranoia and the very real existence of daemonic creatures (or similar type threats) would not allow for any king to allow any internal threats to loam over his head (see High Elves vs the Cult of Pleasure).

Obviously, some nations have strong personal-political ties and are less likely to have local-internal conflict. But, in places where 'outsiders' pose a real threat to internal harmony, it is possible for even the most 'goodly' peoples to overreact to strange phenomenons, such as one dwarf hold slaughtering an entire merchant caravan over suspicious goods or behaviour (not likely, but possible). Internal safety is a larger concern than international harmony (even between racially allied powers).

In some cultures, the importance of Order is of greater significance than personal safety or liberty (IE, surrendering all your rights to have knights protecting your village from bandits or Goths). When the safety disappears, so does the fealty which results in civil war. Sometimes (if not always) this results with new management. As much as we would like to believe this behaviour is not possible, its a very real possibility. The closer the race/political power is to destruction (can be read Forces of Destruction) the more likely the power will over-react or judge misbehaviour harshly (IE, squishing minor rebellions). Its a consequence of living in a World quite literally built on War.

Don't see the faction books as solidified political systems; but rather the equipment available to one particular political party (AKA, the general 'you'). Everything on the 'other side' is against you, be it elf/dwarf/man/chaos. Your brother could be against you, your mother or even your own son. Arms are raised as the result of the break down of negotiations (if your creed would allow to even try).

It is obvious some races are more warlike among themselves than with other races or factions. Just as some political situations create a large opportunity for rebellion or private wars to occur within a nation.

Warhammer is a game built upon the very existence of every army being able to battle any other army, at any given time, in any given place (AKA, random 'mysterious' terrain). Justifying it with lore should not be all that difficult (my Wood Elf General is a heretic to Wood Elf ways; thus, its only natural for more 'devout' Wood Elves to come after him for blood: My High Elf Dragon Lord is a mischievous one, he's probably caused enough tension between himself and a more than one proud leader to be brought to judgement by at least a private army- if not the king's).

Sometimes, some people just want YOU dead. It would be safe to assume this at the start of every battle.

Other causes for internal conflict, or even civil wars, range from personal emotions (Lust, Revenge, Greed) to complicated religious reasons (interpretation, corruption) or even political concerns (taxes, inheritances, legitimacy). The connections between these topics and specific army books should not be too difficult to figure out.

And there's always the question of 'purity'. In a realm full of corruption (via chaos), its always possible for people to believe or actually be tainted. Some people will not listen to reason (those driven by emotional motivations) and others will gladly overlook your defense for political gain (corruption within society). Maybe someone just wants your stuff, being the richest man or having the prettiest wife (or your partner is the childhood friend of a nefarious person).

Or a nice combination of all the things I've listed: A Bretonnian Lord's keep brought under siege by his neighbour, who claims the the lord possessed by chaos. Jealous because the object of his affection married to this Lord, feverishly looking for evidence of the corruption within the Lord's realm, and placing all the blame upon the Lord as soon as he has that one piece of evidence he needs. Using the religious fever of his knights, the neighbour leads an expeditionary force into the Lord's realm to 1) Cleanse the Taint 2) Bring salvation to people 3) Refill his coffers and pay his soldiers the wages owed (promises) 4) Re-claim the Girl he loves 5) Glory 6) Revenge. And the Lord has done nothing wrong, just a victim (if he loses) to some zealot's obsession.

It gets tricky when you look at Lizardmen. I assume Slaan might be more emotional they let on, being more powerful than essentially anything else on the plane. Proclaiming themselves the most devout, they could enlist the help of others to eliminate Slaan who've 'strayed' from the correct path. Slaan innovators or sympathizers could be detrimental to the Old Ones' plan. Maybe, someone tries to manipulate it? Or chaos.

[Craze_b0i]

sorry let me be more detailed. I am asking if an army would war its own kind to see who had a leadership position.

In theory, all of them would.

In practice some are much less likely. eg. Slann or Dwarfs.

Take Dwarfs for instance. In theory 2 dwarf holds could go to war over a grudge. In practice however there is very little mention of it ever happening so its probably quite rare, the only recorded instance I can think of is 'The Grudge of Drong'.

[TheDungen]

they all do, warhammer simply inst a nice place to live.

[warboss6820]

What im asking, because you guys are going it will aways happen a few times, is if it happenes often and, if when it happens will the victor lead the invasion. Although this second part is less nessecary it is the reason i posted those links. Basicly:
Beastmen:always
Brettonia: happens usully when two dukes disaree but not alot
Daemons:alot for chaos invasions and the great game
Dark elves:No usully simply not stuip enough to waste troops like that
Dwarfs:extremly rarely unslees have a grude or an oathbreaker that refuses to take the slayer oath(he must die)
High elves: Ever rarer then dark elves
Lizardmen: The old ones dont like their servents warring
Ogres: fairly often
Orcs and Gooblins: so often it randomly(like the army) impedes their races progress(not that they really care)
Skaven: often. Clans attack clans to absorb troops and elimate rivals. Also a political side with assasinations playing a huge role.
Empire:rarely more often then dwarfs but less then brettonia. However civil wars are rife, during the point of 3 emporeors there was a huge civil war.
Tomb kings: often due to the fact they all want to rule(but wouldnt dare attack settra unless they are mad tyrants)
Vampires: Often but not for troops simply to iliminate rivals
Warriors of chaos: most often besides greenskins
Wood elves: extremly rarely. To few and to crowded is the forest for inter-wood elf wars.
Please correct me if im wrong. This is what i understood.

[Urgat]

On skavens, I have to point out the armybooks mention quite a few clans that have been destroyed by other clans for various reasons. Of course if it's, say, Moulder versus some minor clan, it's more massacre than war probably, but I think this shold count regardless

[Craze_b0i]

What im asking, because you guys are going it will aways happen a few times, is if it happenes often and, if when it happens will the victor lead the invasion. Although this second part is less nessecary it is the reason i posted those links. Basicly:
Beastmen:always
Brettonia: happens usully when two dukes disaree but not alot
Daemons:alot for chaos invasions and the great game
Dark elves:No usully simply not stuip enough to waste troops like that
Dwarfs:extremly rarely unslees have a grude or an oathbreaker that refuses to take the slayer oath(he must die)
High elves: Ever rarer then dark elves
Lizardmen: The old ones dont like their servents warring
Ogres: fairly often
Orcs and Gooblins: so often it randomly(like the army) impedes their races progress(not that they really care)
Skaven: mostly political not really wars
Empire:rarely more often then dwarfs but less then brettonia
Tomb kings: often due to the fact they all want to rule(but wouldnt dare attack settra unless they are mad tyrants)
Vampires: Often but not for troops simply to iliminate rivals
Warriors of chaos: most often besides greenskins
Wood elves: extremly rarely. To few and to crowded is the forest for inter-wood elf wars.
Please correct me if im wrong. This is what i understood.

Skaven clans fight among themselves pretty much the whole time.

Empire is just as likely to fight itself as Brettonia. For nearly 1000 years or something they had 3 Emperors. All the states have their own armies and can war with their neighbour.

Otherwise you are pretty much right.

[warboss6820]

ok ill edit the post. Also i remember during valds invasion it said the emporer was allied with vald and randomly send troops to attack his own troops. THis could count

[Athelassan]

ok ill edit the post. Also i remember during valds invasion it said the emporer was allied with vald and randomly send troops to attack his own troops. THis could count

I don't recall anything like that ever happening.

The only thing close to that I can think of was during the Battle of Four Armies when the elected Emperor and the Ottilian Empress, who were nominally allies against Konrad, ordered each others' assassinations during the battle.

[warboss6820]

oh my bad that was ghagskul's invasion in 40k. My bad. ill fix the post.

[Craze_b0i]

No need to go back and change your posts. Just mentally edit the previous information inside your head.

[warboss6820]

No need to go back and change your posts. Just mentally edit the previous information inside your head.

oops to late . No harm done, plus it will be easier for the person of the futrue to simply look at the post(If they are lazy like me)

[Gromdal]

All of them.

But the most unlikely are: Dwarfs, WE and LM