19th century new national borders. The Concert of Europe attempted to preserve this settlement was established to preserve these borders, with limited impact. Most countries in Central America and South America obtained independence from colonial overlords during the 19th century. In 1804, Haiti gained independence from France. In Mexico, the Mexican War of Independence was a decade-long conflict that ended in Mexican independence in 1821. Due to the Napoleonic Wars, the royal family of Portugal relocated to Brazil from 1808-1821, leading to Brazil having a separate monarchy from Portugal. The Federal Republic of Central America gained independence from Spain in 1821 and
Battle of the Trench (1821) Battle of the Trench (1821) The Battle of the Trench () was fought near Tripolitsa in Arcadia in August 1821 during the first year of the Greek War of Independence between the Greek revolutionary forces led by Theodoros Kolokotronis and the Ottoman garrison of Tripolitsa. The battle ended with the complete victory of the Greeks. In August 1821, Greeks began the siege of Tripolitsa. The Ottomans who were besieged in the city attempted several night sallies in order to find supplies. When Theodoros Kolokotronis was called by the besiegers to take over command of the siege, he therefore ordered the