Answer
Not perhaps as clear cut as it may first appear. Economically, I suspect that in 1914 Britain may still have just been the strongest though it had been losing ground for some time to the United States and to a lesser degree Germany. It was financing the war that would virtually bankrupt Britain and put it heavily in debt to America and its own empire.
In terms of military power its even harder to judge. One of the main causes of the war had been the relentless arms race between the great powers of Europe and in particular a naval power struggle between Britain and Germany. In fact the alliance system that would tip Europe headlong into war had been developed partly because the main powers were so evenly matched - allies were essential to tip the balance. This parity of power can be seen in the way that when war did break out it immediately became a stalemate that neither side could break for four years.
By the war's end Germany was in economic ruin, France industrially devastated and with Britain heavily in debt to just about everyone. America became the most powerful nation in terms of economic strength, industrial might, manpower, and military.
Answer
Britain was the most powerful country at the beginning of world war 1 in terms of military might, Imperial colonies and 3nd largest economy (behind US and Germany), at the end of the war Britain was deminished but still considered one of the most powerful countries with an even larger empire navy as one of the victors of WW1, but was financially wounded, at the end of the Second world war is officially the end of British superpower and the Rise of Russia and the US, the United States became the only remaining superpower in the early 1990s with the dismantling of the USSR.
So your answer is Britain/Germany/ before WW1 and US/Britian after WW1
If you're asking what is the most powerful country, then the answer is the United States without a doubt. The US is the world's only superpower and has the most powerful army as well as the largest economy. If you're asking what country is the best country, then there's really no way to decide. Most will determine the #1 country by development ratings, in which the answer would be Norway. However, some people determine it by power, in which the answer would be the US. The answer could very well be the US as it is one of the most developed and least corrupt nations in the world, in addition to being the most powerful.
The United States
Brain(pakistan)
No. we r the most powerful country
If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.If you mean ancient Rome, it would depend on the times. At the beginning of the city the king was the most powerful magistrate, during the republic it would have been a dictator and during the principate it was the emperor.
No. America was very unprepared to take on the most powerful country in the world.
that was the time when the Romans pretty much ruled the known world they were the most powerful country of the time and caused the beginning of Christianity.
Many believe that running the world's most powerful country makes the president the most powerful person in the world.
The U.S.
India
Aztecs
Great Britain.
The fact is it's not
Yes, at that times, France was, with Britain and Spain, the most powerful country in the world.
Great Britain was the most powerful country because, thanks to his empire, had the availability of important mineral resources, ruled over millions of subjects and controlled a large part of world trade, due to its fleet, which was the world's most powerful.
At the moment the most powerful country is America,the 3'rd most powerful country is Russia.
The European Union is the second most powerful entity in the world after the US. Although not technically a country, the EU holds the potential to be a superpower and is even more powerful than China. The EU is expected to fuse as one country someday and its also not expected to be surpassed as the second most powerful country.