The word(s) "forces" appears 8 time(s) in 8 verse(s) in Quran in Mohsin Khan translation.

(1) And when they advanced to meet Jalut (Goliath) and his forces, they invoked: "Our Lord! Pour forth on us patience, and set firm our feet and make us victorious over the disbelieving people."

(2) (O disbelievers) if you ask for a judgement, now has the judgement come unto you; and if you cease (to do wrong), it will be better for you, and if you return (to the attack), so shall We return, and your forces will be of no avail to you, however numerous they be; and verily, Allah is with the believers.

(3) And know that whatever of war-booty that you may gain, verily one-fifth (1/5th) of it is assigned to Allah, and to the Messenger, and to the near relatives [of the Messenger (Muhammad صلى الله عليه وسلم)], (and also) the orphans, Al-Masakin (the poor) and the wayfarer, if you have believed in Allah and in that which We sent down to Our slave (Muhammad صلى الله عليه وسلم) on the Day of criterion (between right and wrong), the Day when the two forces met (the battle of Badr); And Allah is able to do all things.

(4) And (remember) when Shaitan (Satan) made their (evil) deeds seem fair to them and said, "No one of mankind can overcome you this Day (of the battle of Badr) and verily, I am your neighbour (for each and every help)." But when the two forces came in sight of each other, he ran away and said "Verily, I have nothing to do with you. Verily! I see what you see not. Verily! I fear Allah for Allah is Severe in punishment."

(5) Then Allah did send down His Sakinah (calmness, tranquillity and reassurance) on the Messenger (Muhammad صلى الله عليه وسلم), and on the believers, and sent down forces (angels) which you saw not, and punished the disbelievers. Such is the recompense of disbelievers.

(6) If you help him (Muhammad صلى الله عليه وسلم) not (it does not matter), for Allah did indeed help him when the disbelievers drove him out, the second of the two; when they (Muhammad صلى الله عليه وسلم and Abu Bakr رضي الله عنه) were in the cave, he (صلى الله عليه وسلم) said to his companion (Abu Bakr رضي الله عنه): "Be not sad (or afraid), surely Allah is with us." Then Allah sent down His Sakinah (calmness, tranquillity, peace) upon him, and strengthened him with forces (angels) which you saw not, and made the word of those who disbelieved the lowermost, while the Word of Allah that became the uppermost; and Allah is All-Mighty, All-Wise.

(7) Say (O Muhammad صلى الله عليه وسلم) whoever is in error, the Most Gracious (Allah) will extend (the rope) to him, until, when they see that which they were promised, either the torment or the Hour, they will come to know who is worst in position, and who is weaker in forces. [This is the answer to the question in Verse No.19:73]

(8) O you who believe! Remember Allah's Favour to you, when there came against you hosts, and We sent against them a wind and forces that you saw not [i.e. troops of angels during the battle of Al-Ahzab (the Confederates)]. And Allah is Ever All-Seer of what you do.