@clairlemon One thing I've learned throughout my life is that fighting a war doesn't prevent war in the future. There's always more war.
Being reasonably prepared does, however, often provide a deterrent from invasion or escalation of conflicts.
@clairlemon Rebuilding Ukraine's industrial capabilities and the militaries of Europe's NATO members is an effective deterrent. Freeing up American forces and materiel from the European theatre provides effective checks against Chinese expansion in the Pacific