Catechism 2304-2308 2304 Respect for and development of human life require peace. Peace is not merely the absence of war, and it is not limited to maintaining a balance of powers between adversaries. Peace cannot be attained on earth without safeguarding the goods of persons, free communication among men, respect for the dignity of persons and peoples, and the assiduous practice of fraternity. Peace is "the tranquillity of order."98 Peace is the work of justice and the effect of charity.99
2305 Earthly peace is the image and fruit of the peace of Christ, the messianic "Prince of Peace."100 By the blood of his Cross, "in his own person he killed the hostility,"101 he reconciled men with God and made his Church the sacrament of the unity of the human race and of its union with God. "He is our peace."102 He has declared: "Blessed are the peacemakers."103
2306 Those who renounce violence and bloodshed and, in order to safeguard human rights, make use of those means of defense available to the weakest, bear witness to evangelical charity, provided they do so without harming the rights and obligations of other men and societies. They bear legitimate witness to the gravity of the physical and moral risks of recourse to violence, with all its destruction and death.104
2307 The fifth commandment forbids the intentional destruction of human life. Because of the evils and injustices that accompany all war, the Church insistently urges everyone to prayer and to action so that the divine Goodness may free us from the ancient bondage of war.105
2308 All citizens and all governments are obliged to work for the avoidance However, "as long as the danger of war persists and there is no international authority with the necessary competence and power, governments cannot be denied the right of lawful self-defense, once all peace efforts have failed."106
Nuclear Deterrence The proposition that when two nations posses the ability to inflict nuclear damage on each other, then neither nations is likely to use its nuclear weapons in the first place.
Gaudium et Specs 81 Talks about the technological advances in today's society. It shows how technology can help a person grow closer to God, as well as show how it can be detrimental to a person's relationship with God. It is the Church's mission to protect human dignity and the common good of all people.
Terrorism: 2297 Kidnapping and hostage taking bring on a reign of terror; by means of threats they subject their victims to intolerable pressures.They are morally wrong.Terrorism threatens, wounds, and kills indiscriminately; it is gravely against justice and charity.Torture which uses physical or moral violence to extract confessions, punish the guilty, frighten opponents, or satisfy hatred is contrary to respect for the person and for human dignity. Except when performed for strictly therapeutic medical reasons, directly intended amputations, mutilations, and sterilizations performed on innocent persons are against the moral law.
Principles of Nonviolence: It is a way of life for many, active nonviolent resistant to evil. Nonviolence seeks to win friendship and understanding. The goal is redemption and reconciliation. Nonviolence seeks to defeat injustice, not people. Nonviolence recognizes that evildoers are also victims. Nonviolence holds that suffering can educate and transform. Nonviolence chooses live instead of hate. Loves restores the community. Nonviolence believes that the universe is on the side if injustice
Conscientious objector- one who for moral or religious reasons is opposed to serving in the military. If a person has a serious opposition against fighting then they can non-military services
Selective conscientious objector- one who believes that the particular war in which he or she would be called to fight is against his moral or religious principles