Demetrios Ypsilantis was elected as the president of the legislative assembly formed in the context of the Greek War of Independence. The assembly aimed to create an organized government to fight for Greece's liberation from centuries of Ottoman rule. The assembly convened in the early stages of the war, allowing leaders from various regions and backgrounds to come together for a common purpose. Ypsilantis, who had previously distinguished himself as a military commander, utilized his leadership skills to provide direction during this tumultuous period of the revolution.

The election of Ypsilantis signified not only a step toward formal governance but also a commitment to creating a unified front against Ottoman forces. The assembly's discussions included crucial governance strategies, military coordination, and international diplomacy to gain support from other nations. As president, Ypsilantis advocated for military organization and the securing of financial resources necessary for sustaining the revolution. His leadership became essential in navigating complex internal and external pressures, including regional rivalries among various Greek factions.

Moreover, the establishment and functioning of the legislative assembly represented a pivotal moment in Greek history, reflecting the aspirations of the populace for self-rule and national identity. Ypsilantis faced challenges, including dissent within the assembly and the need to inspire confidence among the Greek fighters. This elected position enabled him to influence the course of the independence struggle significantly. The assembly's efforts laid the institutional framework that would evolve throughout the war, contributing to the eventual establishment of the modern Greek state.