(U) Ironically, even though there was an increase in international tensions during the 1960s, there was a decrease in the level of USAREUR border operations in the latter part of the decade.
This was due in part to the extensive coverage by the German border police agencies and more advanced US aerial reconnaissance capabilities, but it was caused mostly by a decrease in American resources, both manpower and equipment, available for border patrolling.
On 24 September 1962 Secretary of State Dean Rusk expressed the opinion that policy questions and incidents related to the peacetime surveillance of the demarcation line were not the responsibility of NATO commanders.
Although the regiments had changed several times, the areas of responsibility and stationing had not been significantly changed during the 1950s.
The V Corps area of responsibility in the north was patrolled by the 14th Armored Cavalry Regiment, while the VII Corps areas of responsibility in the center were being patrolled by the 2d Armored Cavalry Regiment and in the south by the 11th Armored Cavalry Regiment.
The United States, Great Britain, and France had their border responsibilities because of old occupation rights, and the other NATO powers could not be committed to border duty until the Supreme Allied Commander, Europe (SACEUR) authorized their use in a NATO-declared emergency.
It was Rusk's view that the legal precedents established by the occupation policies and subsequent agreements with the Federal Republic required the three former occupation powers to insure security for all of the NATO forces by being responsible for border surveillance.