According to the constitution of the DPRK, the SAC chairman, SPA Presidium president and Premier have powers equivalent to one-third of those of a president's powers in most presidential systems. The SPA presidium chairman conducts foreign relations, the premier handles domestic matters and heads the government, and the SAC chairman (known as the chairman of the National Defence Commission before 2016) commands the armed forces. However, the Premier ranks as the lowest of the three: significantly, Kim Jong-il was NDC Chairman without interruption from 1993 until 2011, and Kim Yong-nam was President of the SPA Presidium from 1998 to 2019, while there have been six premiers since Kim Il-sung's death.