What significant event is known as the largest humanitarian airlift in history?

The largest humanitarian airlift in history is widely recognized as the Berlin Airlift. This operation occurred between June 1948 and May 1949, when the Soviet Union blockaded West Berlin in an attempt to gain control over the entire city. In response, the Western Allies launched a massive airlift operation to supply West Berlin with essential goods such as food, fuel, and medicines. Over the course of the airlift, more than 200,000 flights were conducted, delivering approximately 2.3 million tons of supplies to sustain the city's residents.

While other options, such as the Korean Conflict and the Vietnam War, involved significant military interventions and humanitarian efforts, they did not match the scale or organizational intent of the Berlin Airlift in terms of dedicated humanitarian air deliveries. Operation VITTLES is actually the code name for the Berlin Airlift itself. Thus, identifying the Berlin Airlift as the correct answer encompasses the events involved in Operation VITTLES, highlighting the importance of that airlift in alleviating the humanitarian crisis during the blockade.