More than ten million `poison gas' shells, mortar bombs, etc., lie
hidden in Europe, many of them relics from World War I. Some were fired
and failed to detonate, others were abandoned in old ammunition dumps.
Most retain their load of chemical warfare (CW) agents. They are turned
up daily in the course of farming and construction. Many European
nations have permanent departments concerned with their collection and
destruction.
Old munitions, when discovered, are usually heavily corroded and
difficult to identify. Is it a CW munition? Or an explosive? If CW, what
agent does it contain? Once identified, one has to select a destruction
method. Some of the methods that have been proposed are less than
perfect, and are often complicated by the presence of extraneous
chemicals, either mixed with the CW agents during manufacture or formed
over decades in the ground.
Of particular interest are the insiders' reports on the German CW
programmes of both World Wars, and the current status of Russian
chemical armaments.