What needed to change for Norway to meet the German invasion in a stronger position?
Short answerNorway needed to treat the invasion of Denmark as an immediate warning and go to full alert instead of assuming Sweden would be attacked next.
NotesThe decisive alternative is a faster Norwegian mobilization rather than an earlier Allied invasion. Once Germany moved into Denmark, Oslo had strong reason to assume that neutrality no longer guaranteed safety. Norwegian leaders instead expected Sweden to be the next target and took reassurance from that assumption. Sweden's stronger readiness made that logic particularly dangerous because the less-prepared Norwegian coast was the more attractive operational objective.