Have you recently seen the military on the roads?
Do not help foreign power by spreading photos on social media ", is one of several similar posts that have been widely circulated on Reddit and Twitter due to the increased military presence on Gotland.
Oscar Jonsson is researching Russian modern warfare at the Swedish National Defense College, and has a doctorate in military science.
He mostly agrees with the messages in the posts.
- I think you should be very careful when photographing and spreading the activities of the Armed Forces.
The rule of thumb that you should think about, I think is absolutely correct, he says to SVT News.
But what theoretical damage can an individual Swede actually do through something you photograph and post on social media?
In the video above, the researcher gives the answer - and explains what types of motives should be avoided in particular.