Indian Civilization followers accept “Dharam yudh” against “Adharmi” .Adharmi is the one who doesn’t follow the pathway of “Dharma”.
Dharma (Sanskrit: धर्म) is a key concept with multiple meanings in Indian religions (Indian Civilization) , such as Hinduism, Buddhism, Jainism, Sikhism and others. It includes duties, rights, laws, conduct, justice, virtues , “right way of living” and signifies behaviors that are considered to be in accord with Ṛta, the order that makes life and universe possible . Basically it is a doctrine pertaining to the purification and moral transformation of human beings towards the path the path of righteousness and proper religious practice and one’s own moral duties toward God.
Note : “Dharma” doesn’t mean religion nor religion is the exact word for “Dharma” because Dharma is much more than religion which includes individual and the universe as a whole.
अधर्मी (adharmi) – a TREACHEROUS ,
IMPIOUS , UNGODLY , UNFAITHFUL , UNPRINCIPLED , EVIL , IRRELIGIOUS person ; – FOLLOWED BY INDIAN CIVILIZATION FOLLOWERS
Idol worshippers – Idolatry is the worship of an idol or cult image, being a physical image, such as a statue, or a person in place of God. Idolatry refers to false pagan worship ; – FOLLOWED BY BOTH MUSLIMS AND CHRISTIANS THAT IDOLATRY IS A SIN
Note : mushrik (plural mushriks or mushrikun) (Islam) A person who rejects tawhid; an idolater, a polytheist.
Non – believers – Infidel is a term in Christianity which deals with the concept of infidelity, which makes a clear differentiation between those who were baptized and followed the teachings of the Church versus those who are outside the faith. The term infidel was used by Christians to describe those perceived as the enemies of Christianity or disbelievers of Christianity.
Kafir (Arabic: كافر kāfir; plural كَافِرُونَ kāfirūna, كفّار kuffār or كَفَرَة kafarah; feminine كافرة kāfirah; feminine plural كافرات kāfirāt or كوافر kawāfir) is an Arabic term meaning “infidel”, “rejector”, “denier”, “disbeliever”, “unbeliever”, “nonbeliever”. – person who rejects or disbelieves in God as per Islam (Arabic: الله Allāh) or the tenets of Islam.
– FOLLOWED BY BOTH MUSLIMS AND CHRISTIANS THAT NON – BELIEVERS ARE SINNERS
THEREFORE MUSLIMS AND CHRISTIANS ARE ALWAYS AGAINST “KAFIR/MUSHRIK” (ISLAMIC) & INFIDEL/IDOLATRY (CHRISTIANITY) – A KAFIR/MUSHRIK is treated as enemies of muslims and A INFIDEL/IDOL WORSHIPPER is treated as enemies of christians.

War against “ADHARMI” is called “Dharam yudh”.
War against “KAFIR/MUSHRIK” is called “Jihad”
War against “INFIDEL/IDOLATRY” is called “Crusade”