On 5 June 1967 the Six-Day War began between Israel and the Arab states. The war led to an increase in Soviet-US diplomatic contact and cooperation; there were some who hoped this could continue to help the US solve the Vietnam war and other pressing international issues. On June 10, 1967 Premier Alexei Kosygin wrote a letter to contact President Lyndon B. Johnson. The "hot line" message arrived at the White House to seek communication between the United States and the Soviet Union. Alexei Kosygin gives a quick explanation of what the Soviet Union and United States should do in regards to the Middle Eastern Crisis. In the message Alexei Kosygin writes: