The extension of the pact to other nations has been well received at the international level. After the heavy losses of the First World War, the idea of declaring war illegal was very popular with international public opinion. Because the language of the pact justified the important point that only wars of aggression – not military acts of self-defence – would be covered by the Covenant, many nations had no objection to signing. If the pact were intended to limit conflict, everyone would benefit; not to draw any legal consequences. In early 1928, the negotiations of the agreement were extended to all the first signatories. In the final version of the pact, they agreed on two clauses: the first dense war, as an instrument of national policy, and the second inviting the signatories to settle their differences by peaceful means. The Pact not only linked the various nations that signed it, but also served as one of the legal bases established by international standards that the threat or the use of military force in violation of international law and the resulting territorial acquisitions are illegal. In the spring of 1927, French Foreign Minister Aristide Briand proposed a bilateral non-aggression pact with the United States. U.S. Secretary of State Frank B.
Kellogg proposed a multilateral treaty signed by all major world powers. The French agreed and the Kellogg-Briand Pact was signed in 1928 and came into force on July 24, 1929. In the end, 47 other nations followed, but the agreement had little effect in halting the rise of militarism in the 1930s and the outbreak of World War II. Elements of these elements were then incorporated into the Charter of the United Nations and other treaties. The 1928 Kellogg-Briand Pact was concluded outside the League of Nations and remains in force.  One month after its conclusion, a similar agreement, the General Law for the Settlement of International Disputes, was reached in Geneva, requiring its signatory parties to set up conciliation commissions in each disputed case.  The essential provisions of the Covenant, which renounce the use of war and encourage the peaceful settlement of disputes and the use of collective force to prevent aggression, have been incorporated into the Charter of the United Nations and other treaties. Although civil wars have continued, wars between established states have been rare since 1945, with few exceptions in the Middle East.  The Kellogg-Briand Pact was an agreement prohibiting the war that took place on the 27th Sometimes, as the Paris Pact for the city where it was signed, the pact was one of many international efforts to avoid a new world war, but it had little effect to stop the rise of militarism in the 1930s or prevent World War II.
On August 27, 1928, fifteen nations signed the Pact in Paris. Signatories included France, the United States, the United Kingdom, Ireland, Canada, Australia, New Zealand, South Africa, India, Belgium, Poland, Czechoslovakia, Germany, Italy and Japan.