In a report on keeping Europe “whole and free” for the Center for Strategic and Budgetary Assessments, former ambassador Eric Edelman and Whitney M. McNamara advise (p. 47) that “NATO should consider . . . bringing back a version of the submarine-launched cruise missile (SLCM) and a new ALCM. The United States, for example, might consider developing a lighter, shorter-range version of its Long-Range Standoff (LRSO) missile to replace its aging ALCM. These weapons could become part of the NATO inventory delivered by dual-capable aircraft.” They continue, “The United States could also re-field tactical nuclear weapons in existing 155-mm howitzer battalions in the Baltics that are unable to hit deep Russian targets, enabling NATO forces to occupy a key position on a lower rung on the escalatory ladder. In addition, the United States should start the research and development of a new Pershing-3 ballistic missile.” Their bottom line: “In light of existing Russian breaks from the [INF] agreement, the United States should consider eventually withdrawing from the INF Treaty.”