Seeking revenge after a loss is directly circumstancial, and must be examined on a case-by-case basis. Some of the issues that would need to be considered:
Considering each point:
* Punishment imposed, and the "fairness" of it. If the punishment strikes at the core of the nation, then resentment carries.
* Degree of Military Defeat, can go either way. Total military defeat may either push toward nationalist movements, or defeat may be spirit-breaking. I don't know how to quantify this much further without research.
* Post-defeat stability. All people, by their nature, desire stability. If post-war situation is unstable, then further hostilities are likely. If the post-war transition is smooth and in-line with national character, then hostilities are less likely. Examples:
Smooth:
* Japan, WW2 (Emperor allowed to stay - in-line with requisite national character)
* Germany, WW2 (Strong authority in place.)
Unstable:
* Korea, WW2 (US uses hated Japanese in post-war roles)
* Germany, WW1 (Weak central authority, against national character)
This can be expanded on in another thread, if someone is interested.
Mika H.