Definition: In this task, a passage will be given and the goal is to identify an event from the passage. An event is defined as a single word representing something that happened, is happening, or may happen. An event can be factual or hypothetical, positive or negative, certain or uncertain. While most events are based on verbs, an event can also be based on a noun (ex. storm, snow, rainfall) or a copula verb (is, was, been, etc.). The event must not be a pronoun or an adjective. For noun events with multiple words, use the last word in the phrase as event.
Input: Passage: Ironically, NATO's three newest members just a decade ago were still under the Soviet umbrella. Czech Foreign Minister Jan Kavan said he was in nearby Kansas City working with the anti-Soviet undergound in 1968 when Russian troops swept through Praque in the occupation of Czechoslovakia.

working