Romania has said it will acquire the Iron Dome missile defense system used by Israel to protect the NATO country from short-range missiles. Defense minister Ionuț Moșteanu told Romanian television that a deal would be signed this year with manufacturer Rafael "to defend our cities."

The NATO secretary-general said that China could spark World War III by seeking to take control of Taiwan while making sure that the Kremlin would simultaneously launch an attack against NATO territory.

U.S. Ambassador to NATO Matt Whitaker urged Iran to seek peace with the U.S. and Israel as official nationwide remain on high alert for domestic terror activity through sleeper cells.

The UK faces a "rising" and unpredictable threat from Iran, according to a new report that highlights an increase in assassination attempts.

NATO promised to use members' soaring defense budgets for a fivefold increase in air defenses. But there are problems beyond spending to fix.

NATO countries agree to the target of spending 5 percent of GDP on defense after dragging their feet to hit 2 percent.

Germany has accused the Chinese military of disrupting a reconnaissance aircraft over the Red Sea during an operation.

Trump, however, has long been a NATO skeptic. He has excoriated NATO as a financial drain on the United States, and it was reported that several times during his first term he even privately threatened to withdraw from it.

Several NATO militaries operate the Boeing P-8, a derivative of a civilian airliner, that can be used to track Russian submarines activity.