OK, Lets look at the verses that you present to me in the CONTEXT!!!!!!
"When thy Lord inspired the angels, (saying): I am with you. So make those who believe stand firm. I will throw fear into the hearts of those who disbelieve. Then smite the necks and smite of them each finger." (Sura 8:12) [PICKTHAL]
When thy Lord inspired the angels? This is verse is talking about what happened back then. Also, if you go to the next verse you will know WHY!!! God order them to go to war with unbelievers.
"That is because they opposed Allah and His messenger. Whoso opposeth Allah and His messenger, (for him) lo! Allah is severe in punishment." (Sura 8:13) [PICKTHAL]
You see! There is a reason Why they went to war. Unlike the Bible, Where God kills innocent women & children (Even Animals) to take over thier lands.
"Sura 9:5...slay the Pagans wherever ye find them, an seize them, beleaguer them, and lie in wait for them in every stratagem (of war);..." (This your comment on Ahmed Deedat Video)
Hmm? What with dot dot dot? Can tell me whats beyond the dot dot dot? Ofcorse not, why? Because it will condridict what do you want to say.
"Then, when the sacred months have passed, slay the idolaters wherever ye find them, and take them (captive), and besiege them, and prepare for them each ambush. But if they repent and establish worship and pay the poor-due, then leave their way free. Lo! Allah is Forgiving, Merciful." (Sura 9:5) [PICKTHAL]
Take a look to the next verse
" And if anyone of the idolaters seeketh thy protection (O Muhammad), then protect him so that he may hear the Word of Allah, and afterward convey him to his place of safety. That is because they are a folk who know not." (Sura 9:6) [PICKTHAL]
Not only you take the verse out of context, but you never even complete the verse its self!!! and this is DEVILISH!!!
Peace