tranquility

.وَمِنْ آيَاتِهِ أَنْ خَلَقَ لَكُمْ مِنْ أَنْفُسِكُمْ أَزْوَاجًا لِتَسْك

أَلا بِذِكْرِ اللَّهِ تَطْمَئِنُّ الْقُلُوبُ/ الرعد: 28

Legislation of jihad in Islam is for the sake of protecting people against the oppressors and providing them with peace and tranquility which is a divine duty that all Muslims must fulfill.