1) China
2) Japan
3) Russia
4) United States
Explanation:
On the 70th National Day of China which was observed on October 1, 2019, it launched DF-41 (Dongfeng-41) the most powerful intercontinental-range ballistic missile on the planet during the National Day parade at Chang’an Avenue in Beijing. It made its first appearance along with a clutch of new military hardware.