Military spending

The president previously called the decision the "most significant investment in our military and our war fighters in modern history."

The president has warned Europe can no longer rely on Trump's United States—and is busily preparing France and its allies to face off Islamist threats and an increasingly ambitious Russia.

The U.S. deficit is set to surpass $1 trillion by next year, which would be the highest total since the start of Obama's second term.

Berlin may also look to foreigners to boost numbers.

Both North and South Korea have moved several places up the list this year, and so has Iran.

The president made the claim in an unscheduled press conference Thursday and said he told allies, "I would be very unhappy if they didn't up their commitment very substantially."

The summit is an opportunity to present an updated strategy for the transatlantic alliance, but President Trump is unlikely to follow the script.

Canada will spend around 1.23 percent of its GDP on defense in 2018, far below the agreed 2 percent for NATO nations.

Even if the Pentagon budget were cut in half, the United States would still outspend China, Russia, Iran, and North Korea combined.

Russia's 2017 spend was $66.3 billion—20 per cent lower than in 2016.

China is investing heavily in its navy and has made a point of executing huge military drills to signify its determination to advance its national interests.

While headline-grabbing military technology sounds good, the reality is that the country still lags behind its rivals in almost all fields.

The Navy is going forward with plans to purchase its variant of the F-35 jet, which has been described as the most expensive weapon system ever.

Can the German Chancellor's Washington trip thaw relations with the U.S.?

The president wants to boost defense spending and gut funding for other agencies.

Trump's pledge comes amid mounting evidence that potential enemies have built new anti-ship weapons able to destroy the expensive fleet of carriers.

Trump said on Twitter that the F-35 program's cost "is out of control" and that "billions of dollars can and will be saved" after his inauguration.

TVs, DVD players and mini-fridges were required in every room, according to the report.

The president wants to repeal all spending limits; Republicans only want military spending.

Deficits should remain at tolerable levels. So defense budgets don't need to be squeezed unduly.

The Pentagon released a breakdown of its $2.74 billion budget on Thursday.

Former top U.S. military commander slams Europe's foreign policy as "wishful thinking" in light of spending cuts.

Report outlines bleak prospects for British military under political parties' spending plans.

The American way of waging war needs a long, cool rethink.

China say they plan to spend $145 billion in 2015, despite their economy slowing down.

Hawks want an arbitrary fixed percentage of national output dedicated to defense spending.

Ukrainian officials plan to increase the military budget to about $3.2 billion for 2015, a 100 percent increase over this year.

"I am not saying that US doesn't spend a whole lot, but that most don't understand why," Jon Davis, a sergeant of Marines and Iraq veteran writes