Warsaw Pact
Yes, it was between the communist countries of eastern Europe.
The mutual agreement signed between the Western countries in Europe was signed in the year 1948. The name of the mutual agreement signed between the Western countries in Europe is called the Treaty of Brussels.
increase the stability and defense of member countries (A+)
The Soviet defense alliance established in response to NATO was the Warsaw Pact, officially known as the Treaty of Friendship, Cooperation, and Mutual Assistance. Formed in 1955, it included the Soviet Union and seven Eastern Bloc countries, serving as a counterbalance to NATO's military power in Europe. The Pact aimed to strengthen military cooperation among its members and ensure collective defense against perceived threats from the West. It lasted until the political changes in Eastern Europe led to its dissolution in 1991.
NATO
By Mutual Agreement - 1913 was released on: USA: 19 May 1913
Mutual agreement by mutual concessions means that everybody compromised, and everybody agreed. Nobody got precisely what they wanted, but everybody can accept the deal that they did get. This is an ideal outcome for political conflict.
Mutual Aid and assistance Agreement
Any number of reasons. Mutual agreement between the prosecutor and the defense - defense attorney is awaiting 'discovery' evidence - the officer is unavoidably unavailable - results of lab work or tests have not yet been processed. - etc.
negotiation
Signed 14 May 1955, the Warsaw Pact (formally, the Treaty of Friendship, Co-operation, and Mutual Assistance and similar in format to NATO) was a collective defense treaty among the eight communist states of Central and Eastern Europe governing during the Cold War.
Germany, Italy and Japan signed a mutual defense treaty.