Satellite images published by the Washington Post document new lines of defense in Crimea. These are mainly trenches and "dragon's teeth", concrete and steel blocks placed on the ground to slow down the assaults of armored vehicles.
If Russia is strengthening its lines ofdefense in Crimea, it is because it takes seriously the hypothesis of a Ukrainian assault on the peninsula. Many experts, however, consider this scenario unlikely, given the limited capabilities of the Ukrainian army and the immense difficulties presented by such an operation.