The Apollo–Soyuz mission showed that different political systems were not an obstacle for establishing strong, friendly ties between people. The story of Leonov and Stafford is a vivid example. The commanders continued to communicate closely for many years after their flight. They regularly exchanged phone calls and met in Russia and the United States. “My home is Tom Stafford’s home,” said the famous cosmonaut. In turn, one of Stafford’s grandsons was named Alexei… More here.
A quick, but educational read.