The defeat of the Norwegians at Trondheim was especially important for the Germans.  Trondheim is an important port for Norway, being the second largest economic center, controlling the railroads in northern and central Norway.   Trondheim also had the most promising naval base and dominated the land and coastal sea routes from southern Norway into the Norwegian Arctic regions.  Trondheim could also be considered a stepping stone to Narvik.
     Trondheim was attacked by Naval Group 2 which consisted of, the cruiser Hipper,  4 destroyers, and 1,700 troops.  They departed from Germany in the morning of April 7th, heading up the Norwegian coast.  Due to bad weather on the 8th, contact between the destroyers was poor. At 09:00 am the British destroyer the Glowworm spotted the German destroyer Bernt von Arnim.  The Glowworm engaged the German ship and the battle last until the Glowworm ran into the German cruiser the Hipper and sank.
     The warships began to approach Trondheim on the 9th, within the fjord, just past Hydnes, when the Norwegians began to fire on the Germans.  Three of the destroyers stayed behind to battle with the forts while the Hipper and a destroyer continued on to Trondheim.  The city of Trondheim was secured by the Germans by nightfall with no resistance.
     On April 14th, the allies began to land around Trondheim, with the British navy arriving at Namsos.  Two days later three French battalions landed along with British troops coming in from Narvik.  By the 19th the allies had 8,000 men in the direct vicinity of Trondheim.  The German forces were determined to defend Trondheim, and air power was called in.  Bombing on the 20th and 21st, destroyed the British base at Namos and evacuation was beginning to be disscussed.  By April 26th the Germans controlled the entire area and began pushing south to meet the troops advancing north from Oslo.  On May 3rd, the British evacuated Namos and the 100 officers and 1,950 men of the Norwegian 5th bergade surrendered.