European security is jeopardized by the confrontation of the military forces of the NATO and Warsaw Pact alliances (and the threat of attack which they represent), and the absence of political, economic, scientific, technical, and cultural relations between the two blocs of countries. Symptomatic of the problem are the absence or near-absence of notification of military manoeuvres, the location of such manoeuvres in sensitive border areas, surveillance activities, construction of fortifications in border areas, flights of foreign planes carrying nuclear weapons, presence of foreign troops and military bases, and the actual size of military budgets and armaments.