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: But calls to reduce the number of troops in the island have been rejected by the United States because of tensions on the Korean peninsula. The base issue has also shaken the ruling alliance in which the LDP has teamed up with the SDP and centrist New party Sakigake against the main opposition New Frontier Party (NFP).

rejected