Mangal (Mars) mahadasha for Kumbha (Aquarius) Moon sign

In the Vimshottari system a life moves through nine long periods, each ruled by one planet. The planet that rules the period sets the tone of those years: the areas of life that come forward, and the kind of effort that pays.

The Mars mahadasha lasts 7 years in full. Most people meet it partway through, so the part they live through can be shorter.

Mars stands for energy, courage, drive, land and brothers. Its period tends to be active and direct: a time to start things, compete and defend what matters, best used with a cool head.

Counted from Aquarius as the first house, Mars rules Aries and Scorpio, your 3rd and 10th houses. During its period the matters of both come forward:

The 3rd house is effort, courage, skills, brothers and sisters and short journeys. Its lord's period tends to reward initiative, practice and your own hands-on work.

The 10th house is career, standing and public life. Its lord's period tends to put work and responsibility in front, with chances to rise for those who carry them.

Mars is neither friend nor enemy to Saturn, the lord of Aquarius. Its period tends to give what you put into it; the planets' places in your own chart decide more than this relationship does.

Which mahadasha you are in, and when it began, depends on the Moon's nakshatra at the moment you were born, so it is personal to you. Even within the Mars mahadasha, where the planet sits in your own chart and the sub-periods inside it shape the years more than your Moon sign alone.