[color=#FFFFFF]I think it should be a joined venture say JAXA, ESA, NASA and RSA. Even if you look at it, Russia has the means to heavy lift a spaceship big enough to make the flight to Mars even now with for example the Proton rocket which was certified human-grade from day one, as it was planned for the Soviet moonshot. If anyone knows how to launch something into orbit and have it crewed for incredibly long periods of time that's Russia. Nasa could easily provide superior avionics, ESA has a long going program of space habitats and JAXA is amazing in the field of experiments