I’m communist and I don’t support Russia’s invasion. In fact, anyone who calls themselves communist should not support it too. Putin is a pos. War is hell, the labor class always pay the price of war.

Having said that, I won’t defend Ukraine too. The origins of the conflict dates back to Euro Maidan events and it’s clearly tha nazis have infiltrated the government and hold power there.

As a communist it’s your duty to see the world through the lens of historical materialism, which implies here not buying mainstream media romanticized version of this war. But go from this to be supportive of Russia is a jump no communist should take.

As for the rest, a good starting point is to read the Communist Manifesto.

Religion is a tool that is always used to control people and blur their class consciousness. This do not mean it must be banned in a comunist society. For instance, Evo (Bolivia) was a socialist and spoke to the masses using a lot of religious anecdotes, because in Christianity there’s this “socialist” side of Christ that allows such narratives.