Unified Silla
Unified Silla, or Late Silla (, ), is the name often applied to the Korean kingdom of Silla, one of the Three Kingdoms of Korea, after 668 CE. In the 7th century, a Silla–Tang alliance conquered Baekje in the Baekje–Tang War. Silla conquered the southern part of Goguryeo in the 7th century following the Goguryeo–Tang War and Silla–Tang War, unifying the central and southern regions of the Korean peninsula. It existed during the Northern and Southern States period, when Balhae controlled the north of the peninsula. Unified Silla lasted for 267 years until, under King Gyeongsun, it fell to Goryeo in 935. Terminology North Korean historians criticize the term "Unified Silla" as traditionally "Unified Silla" is considered to be the first unified kingdom of the Korean people. According to the North Korean perspective, Goryeo was the first state to unify the Korean people as Silla failed to conquer the most part of Goguryeo and Balhae still existed after the establishment of "Unified Silla"; Balhae also occupied territory north of the Korean peninsula. North Korean historians use the term "Late Silla (후기신라)" as using the word "late" suggests that Silla never unified the Korean people as a whole. North Korea recognises