Gunnar Nygren wrote about military disinformation already during the previous Ukraine crisis in 2014. He has also written the book "Ukraine and the Information War: Journalism between ideals and self-censorship" on behalf of the Swedish Agency for Civil Protection and Emergency Planning.

He believes that it was then clear that the Russian strategy was to saturate the flow of information.

They did not necessarily want to convince the outside world that they were right, but that no one can be right.

He also sees clear examples of that today.

Among other things regarding the battles in the Donbass area.

- There are completely conflicting information.

Putin talks about genocide of Russians.

But there is no evidence for that.

Over the years, there have been many allegations that Russians are being treated badly and killed by the Ukrainian army.

A lot of information is thrown out without being covered and it contributes to this uncertainty.

Biden as little evidence as Putin

The United States has also shown examples of how information warfare is conducted, says Gunnar Nygren.

When Joe Biden tells the whole world about the date Russia intends to invade Ukraine, he hopes to avert a war by showing how much information he has.

But he can show just as little evidence for his claim as Putin.

- It is clear that there is a combination of signal reconnaissance and information submission behind.

But they can not disclose that.

Task stands against task and the result is that the TV viewer asks himself: "Who should I believe in?".

"It's about life and death"

According to Gunnar Nygren, it is in the nature of things that conflict reporting is particularly difficult to follow and carry out.

- War is a big story, it's important.

It's about life and death and the future of people.

There's a lot in the pot.

Both sides are investing heavily in providing journalists with material.

- It is important to bring out their version or confuse so much that readers or viewers will eventually sit back, sigh and say that "I know nothing".

Who should you believe then? 

- You should not believe in anyone.

You should listen, take in the different pages and then make an assessment based on different factors.

See which factors Gynnar Nygren thinks are important to assess the credibility of news from the outside - in the video above.