banking system in order to adapt it to the Bank of International Settlements. Marcus Wallenberg Sr. sat on the Credits Arbitration Committee with Thomas H. McKittrick and Franz Urbig, which solved disputes between German commercial banks. Marcus Wallenberg Sr. taught McKittrick about the complicated international finances, and was an important mentor to the American throughout his presidency of the Bank for International Settlements, teaching him to play both sides simultaneously in the war, which would guarantee the banks and business empires future existence regardless of the outcome. McKittrick wrote to Marcus Wallenberg Sr. in 1943, Marcus Wallenberg Sr. has been described as an eager beaver, unprententious and frugal (money would be spent on projects and not consumption), cautious regarding business, whose main focus was on work. According to the former SVT journalist and authority on Ivar Kreuger, Nikola Majstrovic, in his book, the Truth Behind the Kreuger Crash, Marcus Wallenberg Sr. and the banker J. P. Morgan Jr. paid Josef Stalin to orchestrate the assassination of Ivar Kreuger. Gustaf Oscar Wallenberg Marcus's brother Gustaf Oscar Wallenberg, grandfather of Raoul Wallenberg, became a lieutenant in 1882 and a captain in the Swedish navy in 1892. He left the active military service in 1891 to devote himself to business. He was particularly concerned with traffic issues and the improvement of Sweden's shipping connections. He was the managing director of the shipping company, which, in 1897, managed the ferry traffic between Trelleborg in Sweden and Sassnitz in Germany, and was active on the trade and shipping committee to increase the shipping industry, and, in particular, worked to establish direct Swedish relations with more important transoceanic countries. In 1892, he became the first managing director of Järnvägs AB Stockholm – Saltsjön, but left this post in 1896. Between 1900 and 1907, he belonged to the Swedish parliament's second chamber as a representative of the city of Stockholm. At first, he described himself as independent, but from 1902 he belonged to the Liberal Coalition Party. After the dissolution of the Union between Sweden and Norway, there was a question of reorganising Sweden's diplomacy, Wallenberg was used for this tasks, and in 1906 was appointed envoy to Tokyo, and in 1907, accredited in Beijing. Wallenberg thus became the first permanently stationed Swedish career diplomat in East Asia. At the same time, he was promoted to commander of the 1st degree. In 1908, Wallenberg concluded a Treaty