Viewed through the prism of time, the years after World War II can seem like an idyllic era, with U.S. power supreme, the middle class thriving and families living stable “Ozzie and Harriet” lives after decades of war and economic depression.

It took 50 years for Louis Viscusi to overcome the mental obstacles that kept him from the blighted neighborhood in North Philadelphia that he always meant to visit.

It was the year of the reality check. In 1966, Americans began to grasp what they faced in Vietnam. Back home the U.S. administration struggled to sell the war as a necessary sacrifice to stop global communism and save a backward people from an evil aggressor seeking to enslave them.

Hon Lee, 73: Navy ROTC University of Oklahoma, artillery officer in Vietnam 1967-68, CIA intelligence officer 1971-2001, founder of martial arts school, opened Chinese medicine and acupuncture practice in 2001.

John Sullivan, 71: University of Southern California, Platoon Leaders Course 1963, comissioned 1966, flight school 1966-68. Flew Huey gunships with Marine Observation Squadron-6 in Vietnam 1968-69, retired as colonel, 1994, became associate business professor and college athletics director and founded a leadership teaching ministry in Africa

Mike Wholley, 71: Navy ROTC at Harvard University, flight school 1968, flew F-4 Phantom jets in Vietnam 1960-70. Thirty-year Marine Corps career, law degree and two master’s degrees. Chief judge and staff judge advocate of the Marine Corps. Retired as brigadier general, was executive director of the Marine Corps Scholarship Foundation, appointed general counsel for NASA. Retired in 2014 and loves to ride his motorcycle.

Ord Elliott, 72: Princeton, 1966, Platoon Leadership Course, rifle platoon commander in Vietnam 1967, left Marine Corps 1972. Earned a PhD at Purdue University in 1974, associate professor and professor 1973-1982, management consultant and business strategic adviser, founder of two companies.

John “Ace” Astle, 73: Enlisted in the Marine Corps Reserves out of high school, Marshall University in West Virginia and Platoon Leaders Course, 1962-66, Navy Flight School in Pensacola, Fla., 1967-68. Flew CH-46 helicopter in Vietnam 1968-69, served as a pilot on Marine One, retired from the Marine Corps as a colonel after 30 years. Spent several years as a police pilot, and since 1982, has been an elected official in the Maryland legislature – first in the House, then in the Senate.

The resilience, professionalism and bravery of our 214th Combat Aviation Brigade aviation crews. The most dangerous MOS in Southeast Asia was not combat infantry. It was flying a low and slow fixed wing or rotary aircraft.

Medal of Honor recipients in 1966