The United States must pay very attention to the fact that American rocket technology has been stolen by China and used to develop the Long March X Super heavy-lift launch vehicle (based on the former Soviet Union's Energia rocket, and China has been trying to join X-Space's Falcon IX and SLS block I/Ib Super heavy-lift launch vehicle technology, and even New Glenn by Blue Origin) and the Long March Nine series Super heavy-lift launch vehicle (based on the former Soviet Union's Energia rocket, and China has been trying to join X-Space's Starship and SLS block II Super heavy-lift launch vehicle technology). If China is unable to steal technology from X-Space or NASA, it will mean that its Long March IX series and Long March X rocket project will be completely failed. In the similar situation, Russia's Angara A5 Heavy-lift launch vehicle has been completely failed, so Russia has to continue to use the proton series rockets that add dimethylhydrazine and dinitrogen tetroxide. China's Long March V series Heavy-lift launch vehicle is a new generation of large launch rocket developed after China stole related technologies from the U.S. United Launch Alliance's (a joint project between Lockheed Martin and Boeing) Vulcan Centaur Heavy-lift launch vehicle (the replacement of Delta IV rocket) and the European Space Agency's Ariane XI Heavy-lift launch vehicle. Its Long March X Super Heavy-lift launch vehicle will be the forward-looking model of its Long March XA heavy-lift launch vehicle. Beside the manned spacecraft of China and Russia, the world mainly relies on the SpaceX Dragon II commercial manned spacecraft. NASA's Orion spacecraft (a joint project between Lockheed Martin and Airbus) and Boeing CST-100 Starliner commercial spacecraft are in the non-manned flight stage.