They will probably go to war soon after that.
No,the Ottomans aren't going to stop all wars,they have European borders,but this doesn't make them Europeans. Cortes and Pizarro can live with the natives.You answered your own question.
And there was always heretics (Protestants) to fight in Europe, in addition to the dire threat of the Ottoman Empire, so they could hardly stop all wars. Are the Ottomans going to stop all wars too? And since this is the early 16th century, what is Cortes and Pizarro going to do in the New World?
No,the Ottomans aren't going to stop all wars,they have European borders,but this doesn't make them Europeans. Cortes and Pizarro can live with the natives.
They can still defend themselvesThen the Ottomans will overrun Vienna if they have the chance, and invade Italy. Cortes and Pizarro can't really live with the natives since they went there in bad faith with war on their mind.
I'm not sure what on earth would make them do so--war was an accepted and often glorified part of life, at least among the elite.What do you think would have happened if they decided that they should all wars?
What if all European nations decide that they should stop all wars in the beginning of the 16th century
They will probably go to war soon after that.
What do you think would have happened if they decided that they should all wars?
Such a treaty can't last,you are rightThat's OTL, actually. Unfortunately it didn't last, and the Treaty of London is relegated to a footnote in history, if it's even mentioned at all.
That's OTL, actually. Unfortunately it didn't last, and the Treaty of London is relegated to a footnote in history, if it's even mentioned at all.
Of course that peace can't happen out of nowhere and I wanted to say that the 16th century is when peace happens and not what happened before thatThe given time period is not exactly suited to this kind of thing. The only way I can see it happening is with a POD much further back, which would allow for a long-term peace to commence by the 16th century. Even then, it would not be an end to all wars: it could be an end to internal wars, and perhaps an attempt to limit external conflcts. But at pretty much any time in history, any polity that goes full pacifist - excepting, perhaps, highly isolated polities - will soon fall prey to wars of opportunity waged by the neighbours.
As for internal peace, I suspect that universal empire (or something resembling it) is almost the only way to get there. If one power controls all of Europe, and governs it in a manner that does not provoke internal resistance or other violence... then you can have internal peace. If this empire is very powerful (and it would probably be, as a consequence of being very capably governed, which it would in turn have to be to reach a situation of complete internal tranquility), then it may be too fearsome for enemies to seriously threaten, which could in turn promote external peace to at least some extent.
As I said, for that kind of thing to exist by the 16th century, you'd need a very early POD. For instance, one might imagine a world where the Roman Empire solves some of its more structural problems, lasts (and lasts, and lasts), and eventually becomes so succesful that it absorbs all of Europe. A true Pax Romana later ensues. Or, with a POD after Antiquity, one might imagine a world where an (alt-)Charlemagne marries an (alt-)Irene Sarantapechaina, and their heirs re-unite the Roman Empire (and then some). Have the Great Schism be avoided as a direct consequence, and you've got a religiously and politically united Europe. Take it from there, and if such a thing can last, you can again see the possibility of a great empire bringing internal peace to all of Europe.
As long as there are competing polities, however, you will certainly have war. Because those polities will have to conduct international relations between them, their interests don't always align, and before long, they will - to use that Clausewitzian adage - continue their diplomacy by other means.
As for internal peace, I suspect that universal empire (or something resembling it) is almost the only way to get there. If one power controls all of Europe, and governs it in a manner that does not provoke internal resistance or other violence... then you can have internal peace. If this empire is very powerful (and it would probably be, as a consequence of being very capably governed, which it would in turn have to be to reach a situation of complete internal tranquility), then it may be too fearsome for enemies to seriously threaten, which could in turn promote external peace to at least some extent.
The Great Empire of Peaceful EuropeansAbout the only thing that could stop European wars is some sort of mega-empire.
The Great Empire of Peaceful Europeans
You dare break our sacred oath of nonaggression? This means war!
Holy, Roman, and EmpireThe Hapsburgs came closest to this IOTL. If you somehow engineered it so that they inherited France instead of Spain, essentially re-uniting Charlemagne's empire, the resulting state would be dominant in Europe, and probably be able to enforce peace across much of the continent. If you somehow engineered it so that they inherited France as well as Spain, even more so.