Korea has suffered from food shortages for a long time and, in the 1960s, began to promote food self-sufficiency as a national policy. In particular, through R&D in the agricultural sector, the dissemination of new technologies, and the establishment of infrastructure and supply systems, Korea was able to achieve 100% self-sufficiency in rice by the late 1970s, accomplishing a Green Revolution. This was made possible by the development dissemination of Tongil-Type high-yielding rice varieties, which significantly increased productivity and transformed Korea’s agricultural practices.