Amid stalled talks over denuclearization of the Korean Peninsula, North Korea has sent another conciliatory signal to Washington. The country celebrated the 70th anniversary of its Day of the Foundation of the Republic on Sept. 9 with military and civilian parades. While the military hardware rolling down the streets of Pyongyang featured a mix of short-range battlefield missiles, tanks, armored vehicles and other weaponry typical of the country's displays of might, it was notable for what it did not include: intercontinental ballistic missiles. The civilian side of the event, meanwhile, placed its emphasis on the North Korean economy, including exhibitions of technology such as civilian drones and a number of participants representing professions including nurses and construction workers....