This is according to Vadym Skibitskyi, the spokesman for the Defense Intelligence of the Defense Ministry of Ukraine, Ukrinform reports.
"Ukrainian intelligence constantly monitors the movement of all (nuclear - ed.) carriers and monitors active measures that the 12th main department of the Russian defense ministry, responsible for the preparation and delivery of nuclear charges to carriers, may conduct or is conducting," Vadym Skibitskyi stated.
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According to the representative of Ukraine’s Defense Intelligence such the activity switched on in 2014 after russia’s aggression against Ukraine started.
"This isn’t an easy process but we have experience in monitoring and gathering intelligence on strategic and other exercises of nuclear forces, which have been held since 2014. That is, we know all the procedural issues. Because of this, the GUR of Ministry of Defense constantly keep the nuclear component of the Russian armed forces under control," the spokesman for the Defense Intelligence of the Defense Ministry of Ukraine concluded.

As Defense Express reported, that Ukraine’s Defense Intelligence Stated That russia Tries to Build 2-million Strong Army while The UK Defense Intelligence Said russia Holding Open Option of Another Round of Call-Ups.
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