This person is rarely capable of direct confrontation or physical actions. Here the energy of Mars is really weakened and less available (unless Mars is in the 1st or 10th house- becoming very strong). One is not capable of doing physical feats or hard work and does not like such kind of activities. When a critical situation comes up, the first reaction of this person will be to hide, so he can have a time to think and prepare how to act. One needs time and finds surprises unpleasant. Mars in Cancer person is maximally effective only in very familiar environments and situations. His main motivation for action is when he/she is pressed by the wall and have no other option. Then one is capable of real Mars feats and actions.
These people learn very well from their past experiences. When a Cancer Mars has to deal with a certain problem for 2nd or 3rd time, he is able to solve it in the most effective way.
Because they approach things in a more gentle and delicate way, others are not aware of the intentions they have and they only realize it when the Mars in Cancer person starts the actual action. Because of that, they might be considered as having a secretive or manipulative manner for achieving their goals.
In relationships, they are extremely sexual, every intimate experience is a deeply emotional and multilayered process, in physical and emotional way. Since they feel the needs of the other instinctively and have a strong desire to satisfy these, they often are very good lovers. In relationships they look for and give total security and trust.