1940 Norway Campaign Part 2 of 5: Planning, Invasion & Narvik,

Norway's ports, North Atlantic access, Swedish iron-ore route, and exposure to blockade drew Germany into invasion planning.

Aid to Finland supplied the political case for Allied intervention, while Narvik's position and facilities made it the natural focus of landing and mining plans.

German logistical delays and Allied mining schemes brought parallel invasion and interdiction plans toward a near collision in early April 1940.

Norway and Britain received warning signs before the invasion, but incomplete mobilisation and misread naval movements left the initiative with Germany.

HMS Glowworm pursued two troop-carrying German destroyers, attacked the far larger Admiral Hipper with torpedoes, and rammed the cruiser.

The loss of HMS Gurkha illustrates how surface forces were still learning whether concentration or independent manoeuvre offered better defence against air attack.

After Denmark fell within six hours, Norway's reliance on delayed call-up messages rather than immediate mobilisation left ports and garrisons dangerously unprepared.

The Narvik invasion group's escape from British interception preserved Germany's northern bridgehead and limited General Fleischer's freedom to move south.

This interpretation treats the initial Norwegian resistance at Narvik as a battle in its own right, before the two British destroyer actions.

A brief chronology places the Narvik battles within the wider invasion, as air attacks struck Norwegian towns and German ground forces advanced.

Norway's ageing coastal-defence ships were heavily armed local defenders whose value depended on readiness and the conditions of the fight.

Fog, dispersed ships, weak communications, and poor readiness prevented Norway's coastal defenders from forming a coordinated response at Narvik.

The garrison awoke too late to defend Narvik, and its command crisis forced General Fleischer to organise a northern counterstroke after the port was lost.

The British destroyer attack at Narvik damaged German warships and supplies, but the action also exposed how much the invasion depended on a fragile logistical position.

Warspite and accompanying destroyers destroyed the remaining German destroyer force, but a shortage of landing troops left Narvik's logistical advantage in German hands.

Whitworth expected a separate landing force, but the absence of troops aboard his victorious fleet left a brief chance to seize Narvik unexplored.

Narvik mattered because it joined the Swedish iron-ore route to a North Atlantic position that could sustain maritime movement and shape wider German choices.