Solar Return Chart MARS-NEPTUNE Aspect

While Mars-Pluto aspects in Solar return chart imply actions that are unconsciously motivated, Mars-

Neptune aspects in Solar return, indicate actions which have no obvious motivation at all,
or which involve a great deal of uncertainty or confusion as to direction, goal, timing, and the possibility of success. 

Frequently, you must proceed putting one foot in front of the other without any guarantees given for your efforts. Careful planning is not always feasible. Job security may be an issue if Neptune is associated with the 2nd, 6th, or 10th houses. As an illustration, suppose you wish to run a shelter for injured animals in your backyard and need the approval of the zoning board. You can proceed with your investigations into the matter before the zoning change comes through, but you cannot be sure your efforts will succeed until the final vote. 

You must trust that situations will work out in your favor or create options. Depending on the aspects between Neptune and Mars, the uncertainty can be manageable or frustrating, and last most of the year. 

Confusion is also a possibility. When dealing with new procedures or institutions, you might not be given the correct information. If you are establishing a new business, you may be making it up as you go along. Those who are on the cutting edge of technical and inventive industries don't always have a roadmap for success. The house placement for Neptune can indicate where the confusion might lie. This is not necessarily an impediment to success, but you must remain flexible and take corrective action as you move forward. Be vigilant as you analyze, adapt, and adjust in order to stay on course. 
Neptune rules sensitivity and higher spiritual principles such as compassion and service to others. Your actions during the year may involve contributing to charities or volunteering to work for charitable organizations. 

You can be emotionally affected by the plight and needs of others in which case; you may need a positive outlet for these feelings if you want to make a difference. Neptune-Mars aspects can be associated with a strong sense of purpose motivated by soul-stirring sensitivity. If so, it is important to follow your passion. You can be rewarded with a sense of accomplishment. Giving is often receiving. 
An outlet through service, spirituality, artistry, or creativity is essential as Neptune also rules addictions. Those who cannot handle the tense emotional sensitivity sometimes associated with Neptune through positive and productive means of expression, may instead choose to escape through drugs, alcohol, or addictions to food, gambling, or sex. This pathway leads to a downward spiral of dysfunction that goes far beyond uncertainty and confusion. 

There may or may not be a need for secrecy this year. Negatively, you might hide your activities because they would meet with disapproval or more serious consequences from those you are close to or society as a whole. This is particularly apropos to addictive behavior. You do run the risk of discovery which is always possible. Neptune aspects do not guarantee privacy. On the other hand, a positive interpretation is that you need to develop a major project quietly. Competition can be stiff, and you need to finalize your invention and seek a patent before disclosing your intentions or activities.

Planets Aspecting Mars 

Aspects to Mars reflect your ability to create your environment to suit your own needs 

and how you would tend to do this. The house placement of Mars shows where the activation is most likely to occur, and the aspects to Mars imply the various internal and external forces created which will either support or thwart your efforts.