Dark Matter and Dark Energy compose most of the universe. Yet, there is no understanding of their nature despite decades of intensive research. Here, we propose a new force that explains, without any further assumptions, the Dark Matter and Dark Energy and their related observations. This force is similar to Gravity, but it is coupled to the angular momentum tensor instead of the stress-energy tensor. This force appears to be negligible at small distances and increases with distance until it dominates over the gravity force , which is shown to happen in the outer regions of galaxies or large-scale universe structures. hence, a force of the large-scale structures. The coupling constant calculated from the observed galactic parameters of this force appears to be so small that it cannot be detected in any laboratory, which may explain why Dark matter has not been found despite extensive research. Dark Matter and Energy are shown to be just two different integrative parts of this single force. This paper includes the theoretical framework and empirical calculations proving the above-mentioned arguments.