Komarov was assigned to the Soviet Soyuz program along with Yuri Gagarin and Alexei Leonov. In July 1966, Komarov was reprimanded by Kamanin for his unauthorised disclosure, while in Japan, that "the Soviet Union will, at the scheduled time, fly an automated spacecraft around the Moon and return it to (the) Earth, to be followed by a dog flight, then a manned circumlunar flight." The following month Komarov clashed with other engineers over ongoing design problems in which zero-G tests showed that the Soyuz module hatch was too small to allow the safe exit of a fully suited cosmonaut. Meanwhile, Komarov and his fellow cosmonauts had their groups and assignments constantly revised, and they became increasingly anxious about the lack of response to their concerns about the design and manufacture of the spacecraft, which Yuri Gagarin had raised in a letter on their behalf to Leonid Brezhnev.