Brother, it doesnt matter what they sell you. Its money, its business. Ally is something else, far deeper than selling you weapons. ISIS for example finds to buy weapons left and right but noone sides with them in their war. Extreme example but you get my point.
You must be crazy if you think Putin will side with you, killing Europeans just because you buying few weapons. In fact he is the one bombed you in Libya when you shot their planes. You call that an ally ? Damn !
It is laughable for you to ask for islands and sea territory that isnt yours just because you have more army, isnt ? In what era you think you live in ? Are you serious telling me Greece shouldnt care about their islands and their sea territory or you joking ? Tell me you joking/trolling please.
Good luck go against France, Greece, Egypt, Kurds, Cyprus, Haftar, Israel and many other to follow when at the same time biggest ports in Greece are owned by China. You might dissapear in few days more likely, Greeks wont do much, everyone else will to protect EU image and/or their interests because of Greeces geopolitical position. The very same reason you asking for their sea territory by force and threats.