Pray for peace.
There are various kinds of love that can be offered. Whether that is something visible or whether it exists solely in the form of prayer, that is still a reaching out. The prayers you offer for the benefit of others serve to fulfill the needs of your soul. The portion of God that belongs in all human beings is made evident by your outreach in concrete or prayerful matters. That is fulfillment of spirit. It is a bringing of potential into a direct and purposeful act. There is no requirement that others be aware of your intentional acts of being loving, for merely being loving is in itself what is important and permanent. It is in embracing all that you are fulfilling the potential of spirit.
When you pray for peace, you may not be stopping conflict, but you are adding your presence to the total energy of what is good, loving, understanding, and tolerant. That is why all human beings have a spirit, a soul. If there were no spirit, no soul within, there would be little awareness of oneness. There would be little identity of yourself with others. There would be no embrace of what is truly meant by being loving.

