North Korea’s accelerated nuclear and ballistic missile developments and the Trump administration’s determination to resolve this issue have changed the dynamic, making either outcome much more possible, Eurasia Group President Ian Bremmer told Business Insider. Trump has signaled, without drawing any specific red lines, that the U.S. will not allow North Korea to develop an intercontinental ballistic missile (ICBM) capable of striking U.S. cities with a nuclear warhead. Before he took office, Trump responded to Kim’s New Year’s address, in which he claimed that North Korea was close to testing a long-range missile.