Mars in LeoMars in Leo indicates people who express themselves and pursue their desires creatively,

Mars in Leo

Mars in Leo indicates people who express themselves and pursue their desires creatively, forcefully, and sincerely. Leo martial energy is demonstrative, strong, heartfelt, magnanimous, and compassionate and produces artists and leaders. Leo’s passions are expressed earnestly, majestically, passionately, proudly, and generously. Leo Mars seeks validation, approval, and, ultimately, praise. If Leos cannot find a creative outlet for their energy, they will direct their energy to unrestrained self-centeredness and defensiveness. 

Traditionally, Mars in fiery Leo is well placed in a Fire Sign where martial energy can be directed usefully to serve, and makes for a vitality and drive that is focused, conscientious, steady, self-conscious, powerfully self-willed, and generous.

–Shiva Das, Divine Love Astrology