USA HISTORY

Detailed explanation-1: -Allied states were those defeated by Napoleon and forced to join his struggle against Britain. The allied states included Prussia, Austria, Russia, and Sweden.

Detailed explanation-2: -In addition to those lands he ruled over directly, Napoleon held alliances with Austria, Russia, Denmark, Sweden, and a greatly reduced Prussia. Essentially all of Europe was now “at war” with Britain, their resources and industry and populations being used to serve the French Empire.

Detailed explanation-3: -Napoleon, however, inflicted serious military defeats on the Austrians, Prussians, and Russians and invaded Spain. At one stage Britain’s only remaining European allies were Sweden, Portugal, Sicily, and Sardinia; in short, the country was without any significant allies at all.

Detailed explanation-4: -The Holy Alliance was a coalition created by the monarchist great powers of Russia, Austria and Prussia, established after the ultimate defeat of Napoleon at the behest of Tsar Alexander I of Russia and signed in Paris in 1815.

Detailed explanation-5: -Two days later, on June 18, 1815, Napoleon led his army of some 72, 000 troops against the 68, 000-man British army, which had also taken up a position near Waterloo, where they were able to communicate with their Prussian allies.