Troops are liking the new app, finding it modern and easy to use. Oregon Army National Guard photo by Sgt. Matthew Kane, 115 Mobile Public Affairs Detachment US soldiers are using a new app to calculate mortar fire-control solutions. The app replaces older software that had become harder to update. It can run on phones and tablets, and soldiers are picking it up quickly. Soldiers are using a new Mortars App that makes it easier to plan and control mortar fire from tablets or smartphones. Morta