President Trump is considering military action against North Korea in an effort to stop their nuclear weapons program, a report says.

Sources told the Wall Street Journal that an internal White House review of strategy on the Hermit Kingdom includes the possibility of military force or regime change — an idea that US officials reportedly have emphasized during recent talks with allies in the South Pacific.

The idea ultimately has left some leaders in the region on edge, according to insiders.

While Trump has promised to uphold the agreements in place in regards to US policy on Asia, some nations have been bracing for a drastic shift in American policy, the Journal reports.

During the discussions with the leaders, sources said, White House officials had been highlighting the possible military dimensions of their proposed strategy.

The two-week-old White House review into North Korea comes a little less than a month after the communist nation conducted a ballistic missile test in the Sea of Japan — and nearly three weeks after leader Kim Jong Un’s estranged half-brother, Kim Jong Nam, was assassinated in Malaysia.

According to the Journal, the possibility of military action may cause China to finally side with Washington and take the necessary steps to help stop the North Koreans. Beijing has already begun reducing coal imports from North Korea.

A source told the Journal that after Trump’s two-day summit with Japanese Prime Minister Shinzo Abe last month, US officials stated that all options were on the table when it came to dealing with North Korea’s nuclear arms program.

Japan and South Korea have been actively trying to aid the US in providing economic and diplomatic pressure against North Korea, the Journal reports.

On Wednesday, leaders from Seoul and the US launched their annual, large-scale military exercises — prompting Kim Jong Un to order his troops to prepare for a “merciless strike,” Agence France-Presse reports.

The drills were said to be similar to last year’s, when an estimated 300,000 South Korean troops were deployed alongside 17,000 US soldiers.

On Tuesday, Defense Secretary Jim Mattis reportedly told South Korean Defense Minister Han Min-Koo that “any attack on the United States or its allies will be defeated, and any use of nuclear weapons will be met with a response that is effective and overwhelming.”

The US has been installing an advanced missile defense program — known as the Terminal High Altitude Area Defense system — in South Korea as their neighbors to the north continue their atomic tests and launches.

Chinese and Russian officials said Wednesday they would be doing everything they could to stop the “Thaad” program. The countries believe the powerful radar system can penetrate their borders and be used against them.

“Both sides said they will continue to strengthen their coordinated opposition to Thaad,” the Chinese Foreign Ministry said in a statement on its website.

With Post wires