The word(s) "war" appears 551 time(s) in 494 verse(s) in Quran in Mohsin Khan translation.

(311) And he (Iblis - Satan) had no authority over them, - except that We might test him who believes in the Hereafter from him who is in doubt about it. And your Lord is a Hafiz (Watchful) over everything. (All-Knower of everything i.e. He keeps record of every person as regards deeds, and then He will reward them accordingly).

(312) And We have not sent you (O Muhammad صلى الله عليه وسلم) except as a giver of glad tidings and a warner to all mankind, but most of men know not.

(313) Say (O Muhammad صلى الله عليه وسلم): "The appointment to you is for a Day, which you cannot put back for an hour (or a moment) nor put forward."

(314) And We did not send a warner to a township but those who were given the worldly wealth and luxuries among them said: "We believe not in the (Message) with which you have been sent."

(315) And it is not your wealth, nor your children that bring you nearer to Us (i.e. please Allah), but only he who believes (in the Islamic Monotheism), and does righteous deeds (will please Us); as for such, there will be twofold reward for what they did, and they will reside in the high dwellings (Paradise) in peace and security.

(316) And We had not given them Scriptures which they could study, nor sent to them before you (O Muhammad صلى الله عليه وسلم) any warner (Messenger).

(317) Say (to them O Muhammad صلى الله عليه وسلم): "I exhort you to one (thing) only: that you stand up for Allah's sake in pairs and singly, and reflect (within yourselves the life history of the Prophet صلى الله عليه وسلم): there is no madness in your companion (Muhammad صلى الله عليه وسلم). He is only a warner to you in face of a severe torment."

(318) Those who disbelieve, theirs will be a severe torment; and those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous good deeds, theirs will be forgiveness and a great reward (i.e. Paradise).

(319) And no bearer of burdens shall bear another's burden; and if one heavily laden calls another to (bear) his load, nothing of it will be lifted even though he be near of kin. You (O Muhammad صلى الله عليه وسلم) can warn only those who fear their Lord unseen and perform As-Salat (Iqamat-as-Salat). And he who purifies himself (from all kinds of sins), then he purifies only for the benefit of his ownself. And to Allah is the (final) Return (of all).

(320) You (O Muhammad صلى الله عليه وسلم) are only a warner (i.e. your duty is to convey Allah's Message to mankind but the guidance is Allah's).