It emerges from an interview with The Kyiv Independent.
The US's incoming president Donald Trump is said to have recently spoken about European soldiers being stationed in Ukraine to oversee the implementation of a ceasefire.
The newspaper asks if this, or military training or other resources, is something that Sweden can participate in.
I do not rule it out, responds Jonson.
Prime Minister Ulf Kristersson (The Moderate Party) emphasizes, however, that it is not about Swedish soldiers being on site before a potential peace.
No, I find it very hard to imagine. This is a discussion that has been going on for a fairly long time. That question requires an enormous amount of discussion and analysis before it can become relevant, says Kristersson on his way into Thursday's EU summit in Brussels.
Pål Jonson highlights to Kyiv Independent that Sweden already has a physical presence on site in Ukraine through the Defence Materiel Administration, which collaborates with the Ukrainian government to purchase military equipment.
We do not rule out the possibility of conducting training also within Ukraine, says Jonson in the interview.
Sweden's military support to Ukraine amounts to approximately 48.4 billion kronor so far, according to the government.
