Lai takes over as leader as Beijing aggressively asserts its claim over the self-governed island of 23 million people.
Lai and Vice President Hsia Bi-khim took their oaths on Monday beneath a portrait of Sun Yat-Sen, the founder of the Republic of China, the formal name for Taiwan’s government.
Outgoing President Tsai Ing-wen also bid farewell during the ceremony, signing off after eight years and a maximum two terms in office.
Representatives from 29 countries were in attendance on Monday, including those from Taiwan’s last 12 diplomatic allies in the Pacific, Central America and the Holy See.
Former United States Secretary of State Mike Pompeo attended, as did Former Lithuanian President Dalia Grybauskaite and representatives of foreign “economic” or “trade” offices that serve as de facto diplomatic missions.
Festivities also included a military parade and traditional drum and dance performance, celebrating Taiwan’s cultural heritage.