The June 1916 incursion into the U.S. by Pancho Villa resulted in Wilson's class being mobilized as part of the Vermont National Guard and he was reinstated to serve. The following year he was commissioned as an artillery officer. During military training in Massachusetts, the young officers were often invited to dinner by the locals, and Wilson had his first drink, a glass of beer, to little effect. A few weeks later at another dinner party, Wilson drank some Bronx cocktails, and felt at ease with the guests and liberated from his awkward shyness; "I had found the elixir of life," he wrote. "Even that first evening I got thoroughly drunk, and within the next time or two I passed out completely. But as everyone drank hard, not too much was made of that."