One of the first outstanding successes was the creation of the so-called 'Mrachkovski Enterprises' or, as it was officially called in GRU documents, 'the network of commercial undertakings'. Jacob Mrachkovski (his brother was a member of the Central Committee) was sent to Germany where he organised a small shop and then a small factory. Subsequently he bought, in fictitious names, several factories in France, Great Britain, Canada, the United States and finally China. The money put into these undertakings quickly grew and, after several years, the Mrachovski undertakings began to show profits of tens of millions of pounds. The money earned was used by the GRU as its chief source of 'clean' money, that is, money which had never been on Soviet territory and consequently could be used for agents' operations. In addition to obtaining money the Mrachkovski undertakings were widely used for the legalisation of newly posted intelligence officers who by now were beginning to be better trained. Journeying from country to country, they found help and support from the Mrachkovski network. They got themselves jobs and after some months received the most laudatory references and went off into other countries where the same thing took place. This went on until the agent was able to stand on his own two feet. The security of the network was so tight that no undertaking ever suspected the existence of another. Mrachkovski himself travelled all over the world, buying up new enterprises, installing one or two of his own people and obtaining perfectly legal and highly lucrative licences and patents.

Relations with the Tchekists were gradually stretched to their limit. The Party was striving to inflame the hostility between the GRU and the Organs of State. Lenin made a great success of this, as did his successors. The next conflict broke out in the spring of 1920. Both Lenin and Trotsky considered themselves outstanding thinkers, theoreticians and practical men; men of deep knowledge as regards military affairs and international relations.