President Donald Trump‘s head of national intelligence stated that China is the “greatest threat” to freedom since World War II in an op-ed published Thursday in The Wall Street Journal.

In the piece titled “China Is National Security Threat No. 1,” Director of National Intelligence John Ratcliffe writes that combatting China’s growing global influence will be the most important fight over the next few decades, stating that resisting “Beijing’s attempt to reshape and dominate the world is the challenge of our generation”.

Ratcliffe was appointed to his position back in the spring by Trump after five years of serving as a Republican congressman from Texas.

“As Director of National Intelligence, I am entrusted with access to more intelligence than any member of the U.S. government other than the president. I oversee the intelligence agencies, and my office produces the President’s Daily Brief detailing the threats facing the country,” Ratcliffe writes in his opening paragraph.

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“If I could communicate one thing to the American people from this unique vantage point,” the top intel chief added, “it is that the People’s Republic of China poses the greatest threat to America today, and the greatest threat to democracy and freedom world-wide since World War II.”

“The intelligence is clear: Beijing intends to dominate the U.S. and the rest of the planet economically, militarily and technologically,” he continues.

Furthermore, Ratcliffe goes on to say that China is seeking to spy on the United States and companies to further its own economy as part of an attempt to “rob, replicate and replace” U.S. businesses. Additionally, he says that China’s authoritarian government robs U.S. companies of their intellectual property, copies the technology, and then replaces U.S. entities in the international marketplace.

Ratcliffe made some other statements and claims about the Chinese government in the rest of the opinion piece, to summarize.

At one point, he accused Beijing of stealing U.S. defense technology to “fuel” President Xi Jinping’s aggressive plan to make the People’s Liberation Army “the world’s foremost military power.”

Ratcliffe, citing U.S. intelligence, also said that China has conducted human testing on members of its military “in hope of developing soldiers with biologically enhanced capabilities,” but he did not expand upon this charge further.

Ratcliffe’s opinion piece is the latest of public statements from members of the Trump administration criticizing China in a variety of subject areas before President-elect Joe Biden becomes president in January, perhaps in order to solidify President Trump’s still-forming legacy as a president who stood up to China. In his Journal piece, Ratcliffe did not mention Biden, it should be noted.

During the presidential transition, experts have been predicting for the most part that Biden isn’t going to perform a complete 180-degree policy reversal from Trump when it comes to China, with many stating that the president-elect doesn’t appear too eager to pull back current U.S. sanctions, perhaps as a bargaining chip in dealing with China.

You can follow Douglas Braff on Twitter @Douglas_P_Braff.