"[Joining] would be a wise thing to do in 2016 as military is the only area which Russia is developing," Sārts told Swedish SVT television.
According to Sārts, who previously served as State Secretary at the Defense Ministry, Russia doesn't pose an immediate threat, but its nuclear rhetoric is a cause for concern.
"Their nuclear rhetoric has changed substantially. They often use it in arguments. It was impossible before, even during the Cold War. Tensions have increased," Sārts said.
"The example of Ukraine has shown that standing outside the cooperation doesn't benefit anyone," Sārts said.
Previously, Sweden had pondered joining the NATO-accredited Strategic Communications Center of Excellence. It has seven signed up members - Estonia, Germany, Italy, Latvia, Lithuania, Poland, and the United Kingdom.
Sweden could join the center to increase the Swedish authorities' capacity to fight propaganda, Swedish Defense Minister Peter Hultqvist said previously.
The decision over Sweden joining STRATCOM has not been made yet, according to SVT.
