Upon escaping the island of Elba, where he had been exiled, Napoleon Bonaparte made a dramatic return to France, landing on March 1, 1815. He quickly regained support, capitalizing on his reputation as a military leader and ruler. By March 20, his forces had swelled to an impressive size, consisting of around 140,000 regular troops and an additional 200,000 volunteers eager to support his comeback. This surge of support showcased not only his popularity among the military but also the sentiments of many French citizens who longed for the stability he symbolized in tumultuous times.

Napoleon’s return was marked by a calculated march to Paris, where he re-entered the city triumphantly. The enthusiasm he garnered was palpable, as he effectively turned the tide against those who had opposed him. Napoleon’s supporters quickly moved to oust King Louis XVIII, solidifying his claim to power within just a few weeks. With this turn of events, Europe was once again confronted with the prospect of war, as the powers that had come together against him sought to contain his renewed ambition, triggering what would later be recognized as the 'Hundred Days.'

In this brief yet impactful period, Napoleon attempted to consolidate power and reclaim his former status, pushing against the coalition armies that aimed to bring him down. The ensuing conflict would lead to the Battle of Waterloo and end in his final defeat. His return significantly shifted the political landscape in Europe, inciting a series of alliances and ultimately leading to caution in international dealings concerning France for many years afterward.