Preparing ground work for the proposed USD 582.7 billion defence budget for the year, which would be submitted to the US Congress by President Barack Obama a week from now, Carter said this budget takes a long term view.
"We have to, because even as we fight today's fights, we must also be prepared for the fights that might come, 10, 20 or 30 years down the road," he said in his address to the Economic Club of Washington.
"Here, our approach is being able to deter our most advanced competitors. We must have and you seem to have the ability to impose unacceptable costs on an advanced aggressor that will either dissuade them from taking provocative action or make them deeply regret it if they do," he said.
"To be clear, the US military will fight very differently in coming years than we have in Iraq and Afghanistan or in the rest of the world's recent memory," he said, adding that the Pentagon will be prepared for a high-end enemy.
Also Read
Describing Russia and China as America's "most stressing competitors", Carter said they have developed and are continuing to advance military system that seek to threaten US advantages in specific areas.
"And in some case, they are developing weapons and ways of wars that seek to achieve their objectives rapidly, before they hope, we can respond," he noted.
The US military is working to defeat ISIS, he asserted.
The US is reinforcing its posture in Europe to support our NATO allies in the face of Russia's aggression.
"In Pentagon parlance, this is called the European Reassurance Initiative and after requesting about USD 800 million for last year, this year we're more than quadrupling it for a total of USD 3.4 billion in 2017," he said.
"We're also investing more in cyber, totaling nearly USD 7 billion in 2017. And almost USD 35 billion over the next five years," he said.