Feliks Ankerstein

1955) was a Polish Army major and intelligence officer.

[2] He became an officer in Section II of the Polish General Staff (the intelligence section), serving as deputy to the chief of its Office 2, Edmund Charaszkiewicz (1929–39), and as a member of the secret K-7 organization (Komitet Siedmiu, "Committee of Seven")[3] that supervised certain covert operations.

[2] He was engaged in covert operations from 16 September 1928, including the 1938 annexation of Trans-Olza[4] and operations conducted in autumn 1938 in collaboration with Hungary in Carpathian Rus.

[2][5][6] After the invasion of Poland in September 1939, Ankerstein worked in Section II's Office (Ekspozytura) "R" in Romania.

He later made his way to London, where he reportedly about 1940 entered the service of British intelligence.