Mark Albertson, a military historian, will address the Senior Men's Club of New Canaan in Morrill Hall at St. Mark's Church at 10 a.m. Friday, March 7, on "Crossroads of History: World War I."

2014 marks the 100th anniversary of the outbreak of World War I.

According to Albertson, the first world war was the most important war in human history in that it led eventually to World War II, the Vietnam War, the Iraq War and the turmoil in the Middle East. It also changed the way war was fought by introducing the machine gun, aerial bombing and strafing, the use of tanks and mechanized transports, and the use of poison gas.

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Albertson is a historical research editor at Army Aviation magazine and is a longtime member of the U.S. Naval Institute. He authored several books and is at work on another, "Sky Soldiers: The Saga of Army Aviation."

He teaches military history courses at the Norwalk Community College Lifetime Learners Institute. In 2005, he was presented with a General Assembly Citation for his efforts in commemorating the centennial of battleship, Connecticut.

The Senior Men's Club is open for new members. Visit or call Jerry Transue at 203-966-6050.