Galtung Triangle
One conflict that comes to mind is the one between Armenia and Azerbaijan over Nagorno-Karabakh, which was a region between the two states that housed ethnic Armenians. Tensions were high as of last year when a 44 day war between the two states cropped up, however the contradiction manifested between the two states have been around since the early 20th century, starting with ethnic division creating latent levels of attitudes and assumptions, then came the Russian Empire in which the states lost internal sovereignty and combined with the underlying latent attitudes escalated to more violent manifest behaviors such as the Armenian Genocide. After this came Soviet era and from there both states gained independence and due to the unsolved raw tensions the two states went into all out warfare in the 90's and picked back up in September of 2020 with the conflict over the Nagorno-Karabakh. This started with a skirmish that ended up being a surprise attack from Azerbaijan on the 27th of