Le Hoan vs Raja Raja Chola I

After the assassination of Dinh Tien Hoang, Le Hoan was proclaimed emperor by the army and court officials. He founded the Former Le dynasty, taking the reign name Le Dai Hanh. His rule stabilized the country and continued the work of unifying Vietnam.

Le Hoan, as commander of the Vietnamese army, defeated a Song Chinese invasion force at the Battle of Bach Dang River. He used a strategy of placing iron-tipped stakes in the riverbed to impale enemy ships. The victory secured Vietnamese independence and established his legitimacy.

Le Hoan launched a military campaign against the Champa kingdom to the south, sacking the Cham capital of Indrapura. The campaign expanded Vietnamese territory and secured the southern border. It also forced Champa to become a tributary state.

Raja Raja Chola I ascended the throne of the Chola Empire, succeeding his father Parantaka II. He inherited a kingdom in the Tamil region and began a series of military campaigns that would transform the Chola state into a major power.

Raja Raja Chola I defeated the Chera king Bhaskara Ravi Varman and annexed the Chera territories in present-day Kerala. This conquest gave the Cholas control over the Malabar Coast and its spice trade.

Raja Raja Chola I conducted a comprehensive land survey and reorganized the revenue system. He standardized tax collection and recorded land holdings in inscriptions, which improved administrative efficiency and funded his military and building projects.

Raja Raja Chola I launched a naval expedition against the Srivijaya Empire in Southeast Asia, targeting the Strait of Malacca. The campaign disrupted Srivijaya's trade monopoly and established Chola influence in the region, though full conquest was not achieved.

Raja Raja Chola I commissioned the construction of the Brihadeeswarar Temple in Thanjavur, dedicated to Shiva. The temple, built with granite, features a 66-meter vimana and is a masterpiece of Dravidian architecture, later designated a UNESCO World Heritage site.