The Vatican’s reception of Trump was full of military ritual - a sanctification of violence by disguising it behind quaint colourful pantaloons and medals and insignia. This is the Church, for goodness’ sake, not a military installation. Where was the witness to the Gospel in this? 
Jesus wept over Jerusalem because it stubbornly refused to learn the ways of peace. Maybe he is weeping over the Church because we refuse too. 
To disband the Swiss Guard would be a magnificent statement for nonviolence and against militarisation that would make the whole world, including ISIS etc, sit up and think about how we achieve world peace. Pope Francis would be putting his money where his mouth his. Jesus' project was to wean us off of our dependence on violence. "He will guide our feet onto the road of peace." Are we serious about following the peacemaking gospel of Jesus, or not?