The first and third signs of the fiery Trinity, Aries and Sagittarius, usually make for an ideal partnership. However, there are certain aspects that could make the long haul, that is a long-term relationship, difficult for them. But it has been found that many of these matches do continue for a lifetime. The Mars-Jupiter combination usually works ideally for the Aries-Sagittarius duo. Both are creatures of impulse. Both can have outside interests without conflict or friction with the other. The Sagittarius banner is ``liberty, freedom and the pursuit of happiness``; The Aries male is usually willing to subscribe to this theory. And for that reason, this makes them a good match. Planet Mars makes Aries hotheaded at times and although Jupiter-child Sagittarius is usually benevolent and generous, she too is given to occasional bouts of irritability. So the key really lies in how successfully the two can counter each other`s moods.