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A Ukranian military officer has offered new insights into the scale and scope of Russian electronic and cyber warfare capabilities, including details on GPS jamming and spoofing tactics, and how they have evolved since a conflict erupted between the two countries more than five years ago. He also said that Russia's capacity to launch some types of attacks may be waning to a degree thanks to American and other international sanctions that have made it difficult for the Kremlin to source key components for these systems.