Mars is certainly the planet of energy and action in our life. Mars gives us focus and single minded determination to pursue one goal. The other specialty of Mars is it triggers action immediately. So, in that sense, the date when Transiting Saturn is making an aspect with Mars in your natal chart definitely signify triggering of a major event in your life.
Saturn and Mars are considered to be natural enemies. I have described it as the clash of titans because both are giants capable of giving very positive result especially in the material aspect of our life, if the aspect is good. But when it comes to our personal life like our health, our relationship front, if the aspects are not positive then we will be most vulnerable.
People who have Kujadosha in their charts must try to maintain the maximum harmony in their life together with their partners. If Mars is in 8th house of natal chart and Saturn is casting a malefic aspect with Mars, then the person may be prone to accident and injuries around the date when the specific negative aspect is taking place. But on the other hand a positive aspect like Trine with transiting Saturn may result in a promotion or unexpected gain from speculative activities like gambling, lottery and stock market. But if it is a negative aspect you must not indulge in any such activities around those dates.
Mars is the planet of power, strength, courage and aggression and measures our ability to project force in life. On the positive side, a strong and favorable aspect with Mars is necessary to give us the energy, independence, will and self confidence to carry out our endeavors. Without which we have no real interests, passions and motivations, no real intensity or ability to carry out anything to the end and really accomplish it.
On the negative side, this same aggression brings about unhealthy competition, argument and conflict. When unchecked by other factors, it causes domination, control, violence and injury, a placing of our own personal will-to-power over the long term good for our life.