NATO launched a 10-day long military exercise in Poland on Monday, June 6 .
The exercise, codenamed Anaconda 16, involved 31 thousand NATO troops from 24 participating nations with the US providing the largest number of military personnel and the [dollar], since the US current assumes roughly 73 percent of NATO’s annual budget.
Relations between NATO and Russia have been tense since Russia’s annexation of Crimea in 2014 and its support for separatists in Eastern Ukraine.