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Several hundred members of Russia's Wagner private mercenary group have returned to eastern Ukraine to fight. This is as Russian President Vladimir Putin signed a decree setting out the routine autumn conscription campaign, calling up 130,000 citizens for statutory military service. Meanwhile, tensions in the Nagorno-Karabakh region escalate as regional leaders look to Russia to broker a deal between Armenia and Azerbaijan, although they remain cautious of the Kremlin. Wion's Eric Njoka speaks to Sergej Sumlenny, a Defense expert and Director at the European Resilience Initiative Center, for more perspective.