themselves on the same side, despite their increasingly acrimonious relations over China and competition for influence in the Pacific. This led to the Lansing–Ishii Agreement of 2 November 1917 to help reduce tensions. On July 9, Commander Kyōsuke Eto, military attaché with the Royal Navy, was killed in the disaster. In late 1917, Japan exported 12 Arabe-class destroyers, based on Kaba-class design, to France. The British under Admiral George Alexander Ballard gave strong praise to the high operational rate of the Japanese squadron, and its quick response to all British requests. In return, the Japanese absorbed British anti-submarine warfare techniques and technologies and gained invaluable operational experience. After the end of the war, the Japanese Navy brought back seven German submarines as prizes of war, which greatly contributed to future Japanese submarine design and development. Events of 1918 In 1918, Japan continued to extend its influence and privileges in China via the Nishihara Loans. Following the Bolshevik Revolution in Russia, Japan and the United States sent forces to Siberia in 1918 to bolster the armies of the White movement leader Admiral Alexander Kolchak against the Bolshevik Red Army. In this Siberian Intervention, the Imperial Japanese Army initially planned to send more than 70,000 troops to occupy Siberia as far west as Lake Baikal. The plan was scaled back considerably due to opposition from the United States. Toward the end of the war, Japan increasingly filled orders for needed war material for its European allies. The wartime boom helped to diversify the country's industry, increase its exports, and transform Japan from a debtor to a creditor nation for the first time. Exports quadrupled from 1913 to 1918. The massive capital influx into Japan and the subsequent industrial boom led to rapid inflation. In August 1918, rice riots caused by this inflation erupted in towns and cities throughout Japan. Events of 1919 The year 1919 saw Japan's representative Saionji Kinmochi sitting alongside the "Big Four" (Lloyd George, Wilson, Clemenceau, Orlando) leaders at the Paris Peace Conference. Tokyo gained a permanent seat on the Council of the League of Nations, and the Paris Peace Conference confirmed the transfer to Japan of Germany's rights in Shandong. Similarly, Germany's more northerly Pacific islands came under a Japanese mandate, called the South Seas Mandate. During the conference, the Japanese delegation proposed that a "racial equality clause" be attached to the Covenant of the League of Nations,