The world’s leading security experts wrote an open letter addressed to Russian and US Presidents Vladimir Putin and Donald Trump calling on the two leaders to reverse the negative trend in bilateral relations at the upcoming meeting in Hamburg, TASS news agency reported. 
The document was posted on the website of the Russian International Affairs Council (RIAC) on Tuesday.
The letter was signed by former British Defense Secretary, Vice Chairman of the Nuclear Threat Initiative and Executive Board Member of the European Leadership Network Desmond Browne, former German Ambassador to the US, Chairman of the Munich Security Conference Wolfgang Ischinger, former Russian Foreign Minister and Security Council Secretary, President of the Russian International Affairs Council Igor Ivanov and former Chairman of the US Senate Armed Services Committee and Co-Chairman of the Nuclear Threat Initiative Sam Nunn.
"The chasm between Russia and the West appears to be wider now than at any point since the Cold War," the letter reads. 
"Your first meeting in Hamburg will be a unique opportunity to underscore that, despite significant differences, the United States, Russia, and Europe can and must work together on areas of existential common interest - chief among them reducing nuclear and other military risks, and preventing catastrophic terrorist attacks."

Source: MENA