Mars rules 9th and 4th house is in 3rd house in Libra

Mars is the planet of energy, courage, and aggression, and it is placed in the 3rd house of communication, initiative, and siblings in the Libra sign of balance and harmony. This combination creates a complex impact on the native's life and personality.

Firstly, the placement of Mars in the 3rd house indicates that the native is highly energetic, enthusiastic, and proactive in communication, social networking, and traveling. They have a strong desire to express their ideas, opinions, beliefs, and thoughts with others and are good at convincing people to their point of view. They may also have a talent for writing, public speaking, teaching, or marketing.

However, since Mars is a fiery planet, it tends to make the native impulsive, impatient, and hasty in their communication style. They may speak without thinking, argue unnecessarily, and make enemies easily. They may also tend to interrupt others and become defensive or aggressive when challenged. Hence, the native needs to be aware of their speech pattern and try to be more diplomatic, calm, and patient while dealing with others.

Moreover, the placement of Mars in the Libra sign creates a conflict between the planet's natural nature and the sign's gentle and refined nature. Libra is a sign of balance, compromise, and harmonious relationships, while Mars is a planet of conflict, competition, and domination. Therefore, the native may feel a constant inner struggle between their desire for assertion and their need for social harmony. They may also attract opponents, rivals, or conflicts with their siblings or relatives.

However, if Mars is well placed and aspected in the chart, it can give the native the strength, persistence, and courage to overcome challenges, achieve success in their communication-related ventures, and improve their relationship with siblings or neighbors. They may also benefit from martial arts, sports, or other physical activities that channel their excess energy and aggression in a positive way.