A wartime listening post - The County
During World War II, Presque Isle was the first location of a very important part of this country’s defense. On May 9, 1942, Lt. Gen. Henry “Hap” Arnold determined there was a great need for monitoring radio transmissions of our own pilots to keep them from inadvertently giving away secrets to the enemy, and also to monitor those of enemy pilots to gain the upper hand in the war.
Source: thecounty.me