Exhaust-Only Ventilation Exhaust-only ventilation is the reverse of supply-only ventilation; stale air leaves the building from a known location (through exhaust fans ducted to the outdoors) and outdoor air enters the building from an unknown location.
In the 1960s, the Soviet Union began to prepare the Warsaw Pact for its internal function of keeping the NSWP member states within the alliance. The Soviet Union took a series of steps to transform the Warsaw Pact into its intra-alliance intervention force.
The Warsaw Pact was A military alliance of communist nations in Eastern Europe. After the USSR dissolved in the late 1980s, NATO's relationship with Russia thawed. In 2002, the NATO-Russia Council was formed to allow NATO members and Russia to partner on common security issues.stablished in 1949 as a military alliance for mutual protection, NATO mission was to prevent nuclear war. Originally NATO consisted of 12 countries: the United States, Canada, Britain, France, Italy, Belgium, Denmark, Portugal, the Netherlands, Norway, Luxembourg, and Iceland.