In 111 BC, Chinese troops invaded Nam Việt and established new territories, dividing Vietnam into Giao Chỉ, Cửu Chân from modern-day Thanh Hoá to Hà Tĩnh; and Nhật Nam, from modern-day Quảng Bình to Huế. While the Chinese were governors and top officials, the original Vietnamese nobles (Lạc Hầu, Lạc Tướng) still managed some highlands.