Military exercise can affect traffic
For example, the transports will take place via Öresund Bridge, the port of Umeå and the airport in Luleå. Swedish Radio channel P4 will inform, in Swedish, about traffic disruptions.
In the event of defense exercises, there may be convoys with many and perhaps slow-moving vehicles. Take another route if possible and avoid driving around convoys where there is no throughway.
According to the traffic regulation, it is not permitted to break or block a military convoy or a convoy of vehicles that belong to emergency services.
Sources: Swedish Transport Administration (Trafikverket), The Swedish Armed Forces (Försvarsmakten)