Boundaries with LOCATION@1 , LOCATION@2 , and LOCATION@3 were established by a series of treaties negotiated in the NUMBER@1 , with two `` neutral zones '' created , one with LOCATION@2 and the other with LOCATION@3 .

On borders with LOCATION@2 and LOCATION@3 , two neutral zones were created -- one with LOCATION@2 , and the other one with LOCATION@3 .
