Beijing is throwing a huge celebration to commemorate seven decades of Communist power.
Various events from citizen parades to fireworks are expected to keep the festive mode, but the highlight is the massive military parade through central Beijing and Tiananmen Square.
In front of officials, select members of the public, and 188 military attaches from 97 countries, China is showing off more than 160 aircraft and 580 pieces of weaponry and equipment.
And all eyes are on Dongfeng-41, the country's newest and the most powerful nuclear missile.
The 'super-nuke' is said to have the furthest range of any nuclear missile and could reach the U.S. within just 30 minutes.
In fact, the Chinese Foreign Ministry has confirmed that the latest weapon is designed to target the U.S.
These commemorative events are seen as part of President Xi's efforts to solidify his absolute power amid prolonged trade tensions with the U.S. and the ongoing unrest in Hong Kong.
While highlighting the current one country, two systems policy, the Chinese leader said Beijing must continue to complete the reunification of the country.
North Korean leader Kim Jong-un sent a letter to President Xi, congratulating Beijing and promising to stay strong and thrive through socialism.
Meanwhile, there will be another mass march on Tuesday afternoon in central Hong Kong, which will be staunchly against China.
Despite police in Hong Kong banning demonstrations, pro-democracy protesters have pledged to hit the streets en masse, clad in all black.
Several demonstrators who chanted pro-democracy slogans in Wan Chai on Tuesday morning have already been arrested.
The traditional fireworks show in Hong Kong has been cancelled, but Beijing's special day will last as "A day of Grief" in Hong Kong.
KIM Da-mi, Arirang News.