You can do so through the American Red Cross, or though the Unitarian Universalist Service Committee, whose address is in your order of service. Universally, religion encourages us to act out of love. Krishna tells Arjuna there is no way out of the battle of good and evil. The battle must be engaged, but in support of the good, and in a way which shows love for all creation. Only by love can men see me, and know me, and come unto me.
Many anthropologists link the beginning of war to religious rites, and especially to sacrifice.
And perhaps they are right. But religion, like all cultural phenomena, also evolves. The efficacy of sacrifice, ensuring good fortune by sacrificing the best animal, is no longer the criteria of good religion. I like much better the Dalai Lama's suggestion that the test of religion is whether or not it contributes to health and happiness and wholeness of all creatures. There are no easy answers.