[1] He was born in Moscow on 5 March 1947 in the family of Iosif Yakovlevich Kazakov and Sofia Yakovlevna Kazakova.

Levanon leaked this letter to The Washington Post, which caused wide coverage to occur in the West and public pressure to mount on the government.

As a result, Kedmi received permission to emigrate in February 1969 and eventually he was granted an exit visa.

After the war, he worked at Sohnut's office in Austria and held various positions within the Israeli Foreign Ministry.

In the 21st century, Kedmi became high-profile lecturer in geopolitics, and from 2014 also became a regular participant in various Russian TV shows.

The youngest son, Sefi, graduated from London Business School and runs a global research firm.