YES, Christianity is a 'religion' of peace. Actually, it is the only religion which promote peace in its full meaning.
Jesus said, “you shall love your Lord your God with all your heart, with all your soul and with all your mind.. This is the first and great commandment. And the second is like it ‘You shall love your neighbor as your self. On these two commandments hang all the Law and the Prophets,” Mt22:37-40
“A new commandment I give you, that you love one another; as I loved you , that you also love one another, by this all will know that you are My disciples, if you have love for one another, John 13:34-35
“If anyone loves Me, he will keep My word, and My Father will love him, and We will come into him and make Our home with him.” John 14:23
“These things I command you, that you love one another.” John 15-17
“You have heard that it was said to those of old, you shall not murder, and whoever murders will be in danger of judgment, but I say to you that whoever is angry with his brother without a cause shall be in danger of the judgment “. Mt. 5:21-22
“Furthermore, it has been said, whoever divorces his wife let him give a certificate of divorce. But I say to you that whoever divorces his wife for any reason except sexual immorality causes her to commit adultery.” Mt 5:31-32
“You have heard that it was said, you shall love your neighbor and hate you enemy; but I say to you ‘love you enemies, bless those who curse you, do good to those who hate you, and pray for those spitefully use you and persecute you.” Mt 5:43-44
“Love never fails.” 1 Cor 13:8
“For I have come not to call the righteous, but the sinners.” Mt. 9:13
“with all lowliness and gentleness, with long suffering, bearing one another in love.” Eph 4:2
“Husbands, love your wives, just as Christ also loved the church and gave Himself for her.” Eph 5:25
“For the love of money is the root of all kinds of evil.” 1 Tm 6:10
“Do not lay up for yourselves treasures on earth, where moth and rust destroy and where thieves break in and steal.” Mt 6:8
“Peace I leave with you, My peace I give to you , not as the world gives I give to you. Let not your heart be troubled, neither let it be afraid.” John 14:27