North Korean leader Kim Jong Un spoke publicly for the first time on Sunday in front of thousands in Pyongyang's main square at a massive celebration marking the 100th birthday of national founder Kim Il Sung, MSNBC reports. During his speech, Kim praised his grandfather and said it was important to keep the country's military strong and to remember that the military is more than rockets. "Let's go forward toward final victory," he said at the speech's conclusion. Kim also reviewed a military parade, which included the unveiling of what appeared to be a new missile. Just two days ago North Korea attempted to launch a rocket, which ended in failure.