America’s top diplomat and the leader of its military penned a joint Op-Ed for the Wall Street Journal last week, titled “We’re Holding Pyongyang to Account,” in which they laid the groundwork for America’s new strategy regarding North Korea under President Trump’s administration.

Secretary of State Rex Tillerson and Secretary of Defense James Mattis joined forces last week to explain the U.S.’s stance on Kim Jong-un’s North Korean regime, assuaging some concerns about the potential for war with North Korea, while still emphasizing a new, more assertive stance toward the reclusive state.

Although tensions have been increasing between the U.S. and North Korea for months, the combination of new long-range missile tests and U.S. intelligence confirming Kim does indeed have the technological capability to create small enough nuclear warheads to mount on said missiles, saw a dramatic shift in U.S. rhetoric toward Kim’s regime.  President Trump took to the media, and to Twitter, to threaten Kim with “fire and fury,” if he were to initiate war with the United States, and in interviews conducted at the Pentagon, Secretary Mattis doubled down on the president’s threat, saying a missile strike on Guam would bring about war.

In the piece, Mattis and Tillerson lay out the clear criteria for victory in their diplomatic efforts: