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: Israel's policy of nuclear ambiguity dates back to the early 1960s, to an agreement struck with the United States and France. Under this policy, the Jewish state would not carry out any nuclear tests and would stay silent on the issue in order to prevent a nuclear arms race in the Middle East.

tests