What it means
In a group you're the organizer and the engine: you propose, gather, see it through. Friends are allies and rivals at the same time. Your plans for the future are bold.
The flip side is quarrels with friends over the shared cause and leadership; it's hard when the group decides without you. A friendship can end abruptly.
This isn't about you if in groups you keep to the side and never argue with friends about the work.
How to check it on yourself
Check it against your past — write your answer down before you look at the chart.
If your Mars is in the 11th house
What should match. Recall your last three shared undertakings with friends or a community. In at least two you organized and pushed the work forward.
When it’s not about you. In two out of three you took part but didn't organize — this isn't about you.
Your sign and house of Mars — in the free calculation: build my chart. How we check the rest — the site’s method.