India, Pakistan and Afghanistan have an equally critical role in helping to bring stability in the region, US has said.
"All three countries and others can play a role in helping to stabilise the situation," State Department spokesman PJ Crowley told reporters at his daily news conference.
The US is investing in Pakistan and Afghanistan because, he said, it's in its national interest.
"We are working cooperatively across the region, including with India, because ultimately, these are countries that have to live together and find stable relationships that serve their own interest and a collective interest," Crowley said.
"That's what we're trying to do and we think we have the right strategy to do this," he said in response to a question.
"We've emphasized and taken a regional approach to this challenge, which is why we have a relationship with Afghanistan, we have a relationship with Pakistan, we have a relationship with India," Crowley said.