The cache consists of 29 secret Russian military files drawn up between 2008 and 2014, including scenarios for war-gaming and presentations for naval officers, which discuss operating principles for the use of nuclear weapons. Read also: US Congress warned of ‘serious national security threat’ linked to Russia “This is the first time that we have seen documents like this reported in the public domain,” said Alexander Gabuev, director of the Carnegie Russia Eurasia Center in Berlin. “They show that the operational threshold for using nuclear weapons is pretty low if the desired result can’t be …