Prior to the outbreak of the European war on September 3, 1939, progress had been made, by means of international agreements for the conservation of whales, toward the creation of what M. Suarez in 1925 characterized as a new jurisprudence “ of which today we have no inkling, owing to the fact that the necessity which now arouses our legitimate apprehensions was never contemplated.” In 1931, due to the efforts of the League of Nations, a Convention for the Regulation of Whaling was opened for signature at Geneva; in 1937, an International Agreement for the Regulation of Whaling was signed at London; in 1938, a Protocol Amending the International Agreement was signed at London.