Voldemort and Dumbledore were likely the most powerful wizards in the world (by far) during their time
This topic comes up a fair bit but what is interesting is we don't have much information on the strength of other magical communities due to the Britain-centric perspective of the books.
We really only have two sources of hard evidence - character statements and the Wizarding World War.
The Wizarding World War was just that - a world war that is implies to have mirrored WW2. This implies that every major player in the wizarding world would have been playing close attention or have been involved in the conflict. However, Grindelwald is stated to have been unstoppable, until Dumbledore finally came out to face him. If there were other wizards of Dumbledore's caliber in Europe, the USA or Asia, why were they unable to confront Grindelwald? Why was so much emphasis put on Dumbledore "finally" moving to confront Grindelwald?
There are 3 explainations:
- No other "great" wizard bothered. This seems unlikely, as at the very least Europe was getting raped.
- The other "great" wizards were scared. This implies they were below Dumbledores level.
- They tried and failed. Which obviously means they werent on the above level.
Most likely some combination of 2 and 3 are what actually happened, with a small sprinkling of 1.
Character statements are obviously less reliable but we have statements like:
- Voldemort is the greatest Dark wizard ever.
- Dumbledore is the greatest wizard alive.
Conclusion: Dumbeldore, Grindelwald and later Voldemort were alone at the top, or at best had very few peers.
EDIT: Furthermore, Dumbledore served the as Supreme Mugwump of the International Confederation of Wizards (?–1995) and Chief Warlock of the Wizengamot (?–1995; 1996–1997). He was also offered Minister for Magic multiple times. This does not prove that he is more powerful than anyone else, but it is interesting that a bunch of politicians (who by nature are desperate to overthrow one another) would bow such deference and power to Dumbledore.
EDIT 2: Other commenters have made the very salient point that Grindelwald was explicitly threatening the Statue of Secrecy, which every wizarding authority had a hugely vested interest in upholding. Given this, it seems impossible that the vast majority of (otherwise neutral) wizards would not have opposed him on this basis alone
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Um... when did Wizarding World War happen?
Zephrok [OP] 21 points · Nov 2022
The war Grindelwald waged was implied to be a close mirror to WW2 which implies that it was a world war.
[deleted] 10 points · Nov 2022
Its was likely focused more towards Europe and maybe the US. The Americans didn't really feel affected in the FB.
And I can't imagine countries like China, Japan or India as having been involved in the war. A lot of the countries in Asia and Africa only got involved because they were colonies of European countries.
Wizarding Colonialism was probably not a thing because the difference in technology wouldn't be that high.
WorthIrrelevant 2 points · Jan 2023
I dont see why wizard colonialism wouldnt be a thing, if one side develops even one revolutionary spell that gives them the upper hand it could allow them to keep down the other side for a long time.
It might explain why the names of the magical schools are so goofy.