China has warned of “resolute and forceful measures” in response to a trip by Taiwan Vice President William Lai to the United States. Lai, a strong advocate for Taiwan’s independence, is officially on transit to and from Paraguay, but his visit has raised tensions. China claims Taiwan and has threatened to take it by force if necessary. Lai’s visit drew criticism from China, stating that it firmly opposes any official exchanges between the US and Taiwan and accusing Lai of being a “downright troublemaker.” The visit comes amid increased Chinese military activity around Taiwan’s waters and airspace.