Another important difficulty was the opposition of neighbouring countries to a closer co-operation between Estonia, Latvia and Lithuania insofar as it seemed to constrain their freedom of activity in the Baltic Sea region. Moscow was keeping an especially sharp eye on its western neighbours.
Oluline takistus oli ka suuremate naaberriikide vastuseis tihedamale koostööle Eesti, Läti ja Leedu vahel, mis näis piiravat nende tegevusvabadust Läänemere piirkonnas.