These are public toots tagged with #EasternBorder. You can interact with them if you have an account anywhere in the fediverse.
https://en.wikipedia.org/wiki/Viktor_Alksnis
It's crazy that there are Latvians like this.
Learn about him from #EasternBorder podcast — https://theeasternborder.lv/podcast/viktors-alksnis-and-russian-propaganda-machine/