“There shall be no compulsion in religion. True guidance is now distinct from error. He that renounces idol worship and puts faith in God shall grasp a firm handle that will never break. God hears all and knows all.” - Koran (2:256)
I wish that verse was Islam’s final truth on the matter. Sadly, that very early Koranic verse was abrogated by many other later verses. A partial sampling:
Qur’an:47:4 “When you clash with the unbelieving Infidels in battle (fighting Jihad in Allah’s Cause), smite their necks until you overpower them, killing and wounding many of them. At length, when you have thoroughly subdued them, bind them firmly, making (them) captives. Thereafter either generosity or ransom (them based upon what benefits Islam) until the war lays down its burdens. Thus are you commanded by Allah to continue carrying out Jihad against the unbelieving infidels until they submit to Islam.”
Qur’an:2:193 “Fight them until there is no more Fitnah (disbelief) and religion is only for Allah. But if they cease/desist, let there be no hostility except against infidel disbelievers.”
Qur’an:9:88 “The Messenger and those who believe with him, strive hard and fight with their wealth and lives in Allah’s Cause.”
Qur’an:9:5 “Fight and kill the disbelievers wherever you find them, take them captive, harass them, lie in wait and ambush them using every stratagem of war.”
Qur’an:9:112 “The Believers fight in Allah’s Cause, they slay and are slain, kill and are killed.”
Qur’an:9:29 “Fight those who do not believe until they all surrender, paying the protective tax in submission.”
Qur’an:8:39 “So fight them until there is no more Fitnah (disbelief [non-Muslims]) and all submit to the religion of Allah alone (in the whole world).”
Qur’an:8:65 “O Prophet, urge the faithful to fight. If there are twenty among you with determination they will vanquish two hundred; if there are a hundred then they will slaughter a thousand unbelievers, for the infidels are a people devoid of understanding.”
Qur’an:9:38 “Believers, what is the matter with you, that when you are asked to go forth and fight in Allah’s Cause you cling to the earth? Do you prefer the life of this world to the Hereafter? Unless you go forth, He will afflict and punish you with a painful doom, and put others in your place.”
Qur’an:9:123 “Fight the unbelievers around you, and let them find harshness in you.”
Qur’an:9:19 “Do you make the giving of drink to pilgrims, or the maintenance of the Mosque, equal to those who fight in the Cause of Allah? They are not comparable in the sight of Allah. Those who believe, and left their homes, striving with might, fighting in Allah’s Cause with their goods and their lives, have the highest rank in the sight of Allah.”
Qur’an:61:4 “Surely Allah loves those who fight in His Cause.”
Qur’an:61:11 “Believers, shall I lead you to a bargain or trade that will save you from a painful torment? That you believe in Allah and His Messenger (Muhammad), and that you strive and fight in Allah’s Cause with your property and your lives: That will be best for you!” Qur’an 61:12 “He will forgive you your sins, and admit you to Gardens under which rivers flow, and to beautiful mansions in Eden: that is indeed the Supreme Achievement. And another (favor) which you love: help from Allah for a speedy victory over your enemies.”
Qur’an:4:94 “Believers, when you go abroad to fight wars in Allah’s Cause, investigate carefully, and say not to anyone who greets you: ‘You are not a believer!’ Coveting the chance profits of this life (so that you may despoil him). With Allah are plenteous spoils and booty.”
Qur’an:4:95 “Not equal are believers who sit home and receive no hurt and those who fight in Allah’s Cause with their wealth and lives. Allah has granted a grade higher to those who fight with their possessions and bodies to those who sit home. Those who fight He has distinguished with a special reward.”
Qur’an:4:100 “He who leaves his home in Allah’s Cause finds abundant resources and many a refuge. Should he die as a refugee for Allah and His Messenger His reward becomes due and sure with Allah. When you travel through the earth there is no blame on you if you curtail your worship for fear unbelievers may attack you. In truth the disbelievers are your enemy.”
Qur’an:4:102 “When you (Prophet) lead them in prayer, let some stand with you, taking their arms with them. When they finish their prostrations, let them take positions in the rear. And let others who have not yet prayed come - taking all precaution, and bearing arms. The Infidels wish, if you were negligent of your arms, to assault you in a rush. But there is no blame on you if you put away your arms because of the inconvenience of rain or because you are ill; but take precaution. For the Unbelieving Infidels Allah hath prepared a humiliating punishment.”