The end of the twentieth century wars initiated a paradigm shift. Conflicts that emerged at the end of the last century and developed in the early 21st century revealed new aspects of the armed struggle. The classic perception of war has been blurred. In place of the bipolar symmetry appeared asymmetric threats. The former state monopoly on the use of force was lost. Some new members of armed conflict appeared, traditional battlefield setting disappeared and progressive imbalance between the parties for the disposition of potential violence leads to inequality and instability in the world. Asymmetry became a main factor in determining the image of modern warfare.