Here are Mars in Leo interpretive resources on the forum:
Primary section: viewtopic.php?f=13&t=32#p119
Garth Allen: viewtopic.php?f=13&t=33#p134
Mars in Leo has similarities to and differences from Sun in Leo. To help discern these similarities and differences, here is a link to the earlier Sun in Leo viewtopic.php?f=51&t=1615
My current concise summary of Mars in Leo (always subject to change) reads:
Here on Solunars, few people have Mars in Leo; but it does appear in the birth charts of Freya's sister and former husband (and a few people that appeared here briefly and disappeared).Strong, courageous, decisive, self-confident; chutzpah. Upbeat energy. Pragmatic idealist. Leap in to help (whatever is needed); takes charge as needed (autocratic?). Observant, knows what’s going on, reads situations well. Sexually ardent, bold, forthright (often, but not always, the aggressor).
To this we can add pragmatic, research-minded astrologers Reinhold Ebertin and Kenneth Irving; the last three U.S. Presidents George W. Bush, Barack Obama, and Donald Trump (along with Lyndon Johnson, U.S. Grant, and Benjamin Harrison); Justices Ruth Bader Ginsburg and Clarence Thomas; Sen. Dianne Feinstein, Dir. Robert Mueller; First Ladies Jacqueline Onassis, Betty Ford, and Rosalynn Carter; Emperor Napoleon Bonaparte, Emperor Hirohito, Fidel Castro, and seven popes; Amelia Earhart, Princess Diana; Charles Manson, Susan Atkins, David Koresh, and several infamous murderers.
Also numerous legendary-scope entertainers and culture impact figures from the arts such as Frank Sinatra, Stevie Wonder, Yoko Ono, Edith Piaf, Della Reese, Ernest Hemingway, Charlton Heston. Lesser yet highly significant music figures including Alice Cooper, George Michael.