Doug misrepresents Jesus over and over. Following Jesus' instructions, the early church was completely pacifist for 300 years. No soldier could become a Christian, and if a Christian became a soldier, he was asked to leave the church.
The culture of life was so strong that it was considered better to die yourself than to harm another. Jesus warning about carrying a sword was given in the context of his prophecy of the Roman invasion and destruction of Jerusalem that happened 40 years later.