(CNN) -- It was the elder generation's Sept. 11: an unprovoked attack on U.S. soil.
Today marks the 72nd anniversary of the Pearl Harbor attacks.
**To see images from that day, watch the video above**
The attack by the Japanese on the island of Oahu, Hawaii, is what made the U.S. get involved in World War II.
Roughly 2,500 U.S. marines, sailors and soldiers were killed that day. More than 2,000 were injured.
There are three known survivors from that day. They include Jackson B. Davis, 95, a former state senator from Louisiana.
President Barack Obama issued a proclamation Friday declaring today National Pearl Harbor Remembrance Day.
In it, he said the following:
"Today, with solemn pride and reverence, let us remember those who fought and died at Pearl Harbor, acknowledge everyone who carried their legacy forward, and reaffirm our commitment to upholding the ideals for which they served."
To read the proclamation in whole, click here.