in a conference on june 21 , the nagaoka domain petitioned for a stance of armed neutrality and an extension of time to persuade the aizu domain , and yet the new government rejected them . 5月2日の会談で、長岡藩は武装中立の姿勢と会津説得の猶予を嘆願したが新政府側はこれを拒否。
joined by the five domains in echigo such as the shibata domain and the echigo-nagaoka domain when negotiations with the new government ' s forces collapsed because armed neutrality was rejected , an alliance was established by a total of thirty-one domains . 同盟には、武装中立が認められず新政府軍との会談に決裂した越後長岡藩、ほか新発田藩等の越後5藩が加入し、計31藩によって同盟が成立した。
