Heightened geopolitical tensions and a rising number of major active wars ranging from Ukraine, across the Middle East and Africa, and on to Myanmar have, in recent years, given various defense companies – and their stocks – a significant boost.In the last 30 days, Lockheed Martin (NYSE: LMT), in particular, has seen positive stock market action, driven by an impressive earnings report in July, approval of sales of military hardware worth some $20 billion to Israel, continued operations in Ukraine, and the ...