Ordog Toxin

The tanks contained a secret weapon developed by FSV scientists called the Ordog Toxin.
Ordog was the Russian word for “devil,” and the fluid in the two metal containers was indeed a devil’s brew--a biological poison developed from the blood of Godzilla itself.  Men had died to obtain bio-samples from Godzilla, and millions of rubles had been spent developing the deadly venom--specifically designed to be effective against Godzilla.  Colonel Pedechenko had received his orders from the Russian president himself.  If the opportunity arose, the colonel was to inject Godzilla with the poison, no matter the situation, or even the consequences.