Conflict usually occurs between greedy Nations that can not be satisfied. We are inside the time of the Fig-tree, and many unknowns; that are in place by design. The world [chaos] is looking for answers: when actually, there is but One-Answer!
The individual "rejection of our LORD" creates Conflict: this rejection is acceptance - of the world, and it's system. Not many that classify themselves as "Christian" know the Ten Commandments; because the world told them that it was obsolete. Not knowing and practicing the First-5 creates Conflict with our LORD. The Second-5 with our fellow man.
2Cor.10:3-5 "For though we walk in the flesh, we do not war, after the flesh." War #1 - with us and the LORD. War #2 - with ourselves. Both take place inside our brains, and our spirit. The inner turmoil can be easily spotted; especially in others, not so much in ourselves. This may manifest as rebellion, but it is an inner struggle non the least.
Another cause of Conflict is covetousness - aka greed-Extreme: Lust! Some of these are named in the Second-5 of the Ten Commandments: "Thou shalt not covet ...." We have 5 senses[flesh] that is connected to the physical; that requires priority and moderation.
"Though we walk in the flesh, we do not war after the flesh" - 2Cor.10:2-6 goes on to explain that our weapons are Spiritual, and mighty = able, powerful; in wealth and influence. Before setting our sights on the "Powers of Darkness", we must deal with our own "imaginations, and every high thing that exalts itself against the Knowledge of Immanuel-Christ-Jesus."