Answer:
Step-by-step explanation:
B beucase Ukraine is not in NATO. Ukraine was part of the USSR and is called the Ukrainian Soviet Socialist Republic, It used to have nuclear weapons before in the 90s they gave them away when they signed the Budapest memorandum in which Ukraine gave its nukes in exchange for promises to respect territorial integrity and sovereignty, and which brings us to Russia, Russia despite signing this invaded Ukraine in 2014, when they annexed Crimea and also had a hybrid war in Donbas, where there was a mixture of locals and Russian forces which Russia denied were there( little green men). In 2022, Russia launched a full-scale invasion of Ukraine.