"It is diplomatically led as it should be, and we'll do our best to protect the Afghan people", he added.
On December 3, US President Donald Trump wrote a letter to Prime Minister Imran Khan, seeking Pakistan's help in bringing Taliban leadership to the negotiation table. The American leader went on to emphasize that the two countries "should explore opportunities to work together and renew partnership", the spokesman added.
According to the Ministry of Foreign Affairs, Trump in the letter stated that his most important regional priority was achieving a negotiated settlement of the Afghan war and in this regard, the United States president sought Pakistan's support and facilitation.
Last month, the Pentagon said that the USA has suspended $1.66 billion in security assistance to Pakistan after President Trump's directive. Pakistan reiterates its commitment to play a facilitation role in good faith.
The White House believes that Pakistan's Inter-Services Intelligence agency and other military bodies have long helped fund and arm the Taliban both for ideological reasons and to counter rising Indian influence in Afghanistan.
"Peace and stability in Afghanistan remains a shared responsibility".
"Since Pakistan has always advocated a political settlement to end war in Afghanistan, the USA decision is welcomed".
Earlier, during an address in a ceremony related to government's 100 days, PM Imran said he will give eggs and chickens to rural women so they can start their own poultry business. An NSC spokesperson described the letter in a statement as asking for "full support for the US -led Afghan peace process", but the phrase "U.S. -led" was later removed.
Although both the USA and Pakistan now have a commonality of views on seeking a political solution to the Afghan problem, the trust deficit between the two is the real stumbling block.
US officials have always been pushing Pakistan to lean on the Taliban leadership, which Washington says is based in the country, to bring them to the negotiating table.
The State Department said Khalilzad will also travel to Kabul, Russia, Uzbekistan, Turkmenistan, Belgium, the United Arab Emirates and Qatar, where the Taliban has stationed its political negotiators in a so-called "political office".