U.S.: A coalition of 16 states, including California and New York, challenged President Trump in court over his plan to use emergency powers to spend billions of dollars on his border wall.

Poland: After Prime Minister Benjamin Netanyahu of Israel said on Thursday that “the Poles cooperated with the Nazis” in the Holocaust, Poland’s president withdrew on Monday from a trip to Israel that was planned with the leaders of three other East European countries.

Kashmir: Militants in the disputed region killed an Indian Army major and at least three other soldiers just days after carrying out a bombing that left more than 40 Indian paramilitary officers dead. The attacks have unleashed jingoism across India and raised the specter of conflict with Pakistan.

Transportation: Virgin Hyperloop One, a company based in Los Angeles and partly backed by Sir Richard Branson, is testing a mass transit system that would put passengers in pods speeding through vacuum tubes at more than 600 miles per hour. While such visions are a distant dream, hyperloop companies have attracted key talent and enthusiastic municipalities.

Technology: The founder of the Chinese technology giant Huawei, breaking from the company’s previous silence about U.S. criminal charges against the company and his daughter, a top executive, called the case against her politically motivated.

Is the game called “tag,” “tig,” “tick” or “it”? Dive into our British-Irish dialect quiz.