Seated left to right - gdr prime minister willi stoph, political bureau member of the socialist unity party of germany (sed) central committee, walter ulbricht, first secretary of the sed central committee and gdr state council chairman, janos kadar, first secretary of the central committee of the hungarian socialist workers' party (hswp), pal losonczi, political bureau member of the hswp central committee and chairman of the presidial council of hungary, jeno fock, political bureau member of the hswp central committee and hungarian prime minister during the signing of the treaty on friendship, cooperation, and mutual assistance in budapest, hungary, may 18, 1967.