Not speaking for OP, but in general:

1. NATO and Nazis - NATO is the millitant organization of the world's imperialist countries (more on imperialism later). NATO also has a deep history of having former Nazis as leaders. Ultimately, NATO serves and protects the worlds imperialist bourgeoisie.

2. Russia and Iran - Both Russia and Iran oppose western imperialism. Both are flawed, but by existential circumstance work against the greatest plunderers in the world, and their path to fixing internal issues would be severely set back if the west succeeded in destroying them.

3. Opposing western imperialism - the "west," global north, etc are imperialist. In short, through massive financial capital and a dying capitalist system, these countries export capital and use it to plunder the global south. Whenever a country opposes this system, they get sanctioned, couped, invaded, genocided, bombed, etc. Imperialism is the highest, most developed stage of capitalism, and is what keeps the global south underdeveloped and destroys their autonomy. The biggest obstacle to socialism is imperialism.

That's a quick, general overview.