Answer

No. In Jain Dharma, an Acharya does not do yuddh or fight a war, even for a sister or any family member.

Explanation

Jain Acharyas follow:

• Ahimsa
• Renunciation
• Compassion
• Non-attachment

Because of these vows, they do not take part in violence, warfare, or revenge.

Spiritual Understanding

In Jainism, true strength is shown through restraint, forgiveness, and spiritual discipline, not through battle.

Takeaway

A Jain Acharya protects dharma through teachings and conduct, not through yuddh.