Secretary of Defense Gilberto Teodoro Jr. delivers a speech during the fifth plenary session at the Shangri-La Dialogue Summit in Singapore on June 1, 2025. MOHD RASFAN, AFP/File

Defense Secretary Gilberto Teodoro Jr. has warned New Zealand to take the threat against China's desire for world domination seriously.

Teodoro issued the warning after Manila and Wellington recently signed a new military agreement.

"We should not put our guard down. If you don't take the risk of China seriously, you will wake up with the neighbor you don't want," Teodoro said on Stuff.co.nz.

He also pointed this out after the recent live-fire exercise of China in international waters following a similar drill between Australia and New Zealand.

He told New Zealand reporters that it was not coincidental, but China's doctrine to change the world order and conquer the world.

He cited China's aggressive actions in the West Philippine Sea, where Chinese vessels harassed Philippine Coast Guard ships.

"They (China) are not an open society. Their intentions are always sinister," Teodoro said.

'China preparing to use military force in Asia'

US Secretary of Defense Pete Hegseth earlier warned that China was "credibly preparing" to use military force to upend the balance of power in Asia -- remarks that earned a sharp rebuke from Beijing.

The Pentagon chief was speaking at an annual security forum in Singapore, as the administration of US President Donald Trump spars with Beijing on trade, technology, and influence over strategic corners of the globe.

China's foreign ministry blasted the speech, saying it had "lodged solemn representations with the US side" over Hegseth's comments and taking particular exception to his remarks about Taiwan.

"The threat China poses is real and it could be imminent," Hegseth said at the Shangri-La Dialogue, attended by defence officials from around the world.

Beijing is "credibly preparing to potentially use military force to alter the balance of power in the Indo-Pacific", he said.

Hegseth warned that the Chinese military was building the capabilities to invade Taiwan and "rehearsing for the real deal".

China has ramped up military pressure on Taiwan and held large-scale exercises around the self-governed democratic island that are often described as preparations for a blockade or invasion.

The United States was "reorienting toward deterring aggression by communist China", Hegseth said, calling on US allies and partners in Asia to swiftly upgrade their defences in the face of mounting threats.

In Beijing, the foreign ministry said: "The US should not try to use the Taiwan issue as a bargaining chip to contain China and must not play with fire."

- 'Stirring up trouble' –

Hegseth described China's conduct as a "wake-up call", accusing Beijing of endangering lives with cyber attacks, harassing its neighbours, and "illegally seizing and militarising lands" in the disputed South China Sea.

Beijing claims almost the entire waterway, through which more than 60 percent of global maritime trade passes, despite an international ruling that its assertion has no merit.

It has clashed repeatedly with the Philippines in the strategic waters in recent months, with the flashpoint set to dominate discussions at the Singapore forum, according to US officials.

As Hegseth spoke in Singapore, China's military announced that its navy and air force were carrying out routine "combat readiness patrols" around the Scarborough Shoal, a chain of reefs and rocks Beijing disputes with the Philippines.

Beijing did not send any top defense ministry officials to the summit, dispatching instead a delegation from the People's Liberation Army National Defence University led by Rear Admiral Hu Gangfeng.

Without referring to Hegseth by name, Hu said of his speech that "these actions are essentially about stirring up trouble, creating division, inciting confrontation, and destabilising the Asia-Pacific".

Reassuring US allies, Hegseth said the Asia-Pacific region was "America's priority theatre", pledging to ensure "China cannot dominate us -- or our allies and partners".

He said the United States had stepped up cooperation with allies including the Philippines and Japan, and reiterated Trump's vow that "China will not invade (Taiwan) on his watch".

However, he called on US partners in the region to ramp up spending on their militaries and "quickly upgrade their own defenses".

"Asian allies should look to countries in Europe for a newfound example," Hegseth said, citing pledges by NATO members including Germany to move towards Trump's defense spending target of five percent of GDP.

"Deterrence doesn't come on the cheap." - with a report from Agence France-Presse