Were there any wars in history that lasted at least a few years

>>1524669
In addition to this, were there any wars where literally nothing happened? I know of the time when Sweden (I think) declared war on Britain solely because they were pressured by Napolean. The war was official but no side has done anything.

>>1524781
>In addition to this, were there any wars where literally nothing happened?
350 years war

Korean War, as long as you consider it over and aren't some MUH CEASEFIRE memelord.

>>1524669

You get that a lot in pre-modern warfare, especially where mercenary professional and hard to replace armies were the norm.

You generally had One Big Battle at some point, and winner takes all. You see it a lot in Roman wars, things like Pydna and Magnesia decided entire wars and empires, and were fairly close run things.

It's really only the advent of modern industrial war where the army itself isn't the Clauswitzian center of mass and its destruction spells an end to your effort, in large part because of the growth of "fronts" and the inability to destroy said army in a day or a battle.

Prior to that, it was more the norm, not the exception.