Chiron's frictional contact with Mars highlights drive, anger and action. Old hurts around assertion resurface until you integrate the lesson with compassion.
Your path is not to become perfect in assertion, but to become honest. Owning the story changes its hold on you.
In relationships, this aspect can attract partners who mirror the wound in assertion. Healthy love gives room for your drive, anger and action to be exactly as it is.
Professionally, you may be drawn to roles that address assertion for others: coaching, teaching, healing, art or advocacy. Your vulnerability becomes credibility.
This aspect can show up as hyper-vigilance in assertion. The work is to feel the sensitivity without letting it make every decision.