Unionise, strikes, mutual aid, and other forms of collective action that leverage the power of a group of people to their benefit.
Fights though? Where did you get that from?
Community defense isn’t about “doing fights” and nearly anything else you might mean is just adventurism (bad)
Wait, isn’t the point of creating a people’s army to fight on a revolution?
When someone says “organize” without further elaboration or context regarding what they actually mean, they are saying: “I am either so immensely lazy that I refuse to give even the most basic directions to a receptive audience or else I’m a poser who doesn’t know what they’re talking about”
Eh, I’d say it is a point worth making to some people even in vague terms. When you’re dealing with people who have been socialized to view everything through an individualist lens of “do your own thing and it will somehow change the world among enough people doing their own thing,” the emphasis alone of arguing for organization can mean something.
You never are in a situation where you can say exactly one word and therefore must pick the imperative “Organize!”, and yet all over the internet we see people saying remarkably little (imo because most of them don’t even know what they mean and therefore can’t explain it). A simple “get involved with a group of activists even if you need to make the group yourself” is much better and should clear up a substantial amount of OP’s confusion.
There are platforms (like twitter) where every word counts. And the TL;DR thing on the internet is real. I don’t think you can blanketly say that elaborating is always easy and therefore it’s always ignorance if someone does not give the full spiel.
Bro, we talked about this. Think of organization of people like organizing a workspace or document. It makes it easier to get stuff done. Think of “an organization” as in a charity or group for self governance. Organization for communism means bringing people together, directing resources to provide for them, and using mass mobilization to win power. The goal is to create a government in waiting like the Soviets that can take over.
It means joining or making a group, then working with that group to advance common goals. A lot of the specifics depend on your opinions (which political party, if any, to join, whether adventurism is okay, etc.), but unionization for example is generally a kind of organizing that most people support.
Striking and fighting are just a very small part of that, a lot if it is about getting other people to join your group, or somehow convincing people that you are in the right (or, bleh, electoralism (hecking DSA)).
The revolution does not occur in a vacuum. How will you acquire weapons, how will you occupy an area, how will you feed yourself, where will you live, how will you communicate with others, what happens if core members get caught, how will you sniff out reactionaries, how will you explain your goals to the people, the list of questions to answer goes on.
What it means for Marxists to organize is to create a group of revolutionaries that can answer these questions. Strikes are just one way to make your voice heard, nothing is guaranteed.