BRUSSELS (Reuters) - The top U.S. military officer, Marine General Joseph Dunford, said on Monday he was committed to the U.S.-Pakistan relationship, which has been strained in recent weeks as Washington piles pressure on Islamabad to crack down on militants.

Gen. Joseph Dunford, chairman of the Joint Chiefs of Staff, speaks during celebrations on Christmas Eve at a U.S. airfield in Bagram, north of Kabul, Afghanistan December 24, 2017. REUTERS/Mohammad Ismail

“Do we agree on everything right now? No we don’t. But are we committed to a more effective relationship with Pakistan? We are. And I’m not giving up on that,” Dunford, chairman of the Joint Chiefs of Staff, told a small group of reporters during a trip to Brussels.

The United States has long blamed militant safe-havens in Pakistan for prolonging the war in neighboring Afghanistan, giving insurgents, including from the Haqqani network, a place to plot attacks and rebuild their forces.

Still, Pakistan is a crucial gateway for U.S. military supplies destined for U.S. and other troops fighting a 16-year-old war in Afghanistan.

Earlier this month, President Donald Trump’s administration, frustrated over Pakistan’s failure to do more to combat militants, announced a plan to suspend up to roughly $2 billion in U.S. security assistance.

That triggered outcry in Islamabad. Pakistan’s military said its army chief told U.S. General Joseph Votel, head of the U.S. military’s Central Command, that Pakistan “felt betrayed” by U.S. criticism.

In a possible sign of efforts to improve relations, Alice Wells, principal deputy assistant secretary of state for South and Central Asia, met with Pakistani Foreign Secretary Tehmina Janjua in Pakistan on Monday.

A statement from Pakistan’s Foreign Ministry said Wells “acknowledged Pakistan’s efforts in eradicating terrorism” and “underlined the need for strengthening intelligence cooperation” to fight terrorism.

Dunford was careful in his public remarks but made clear that Votel would continue to lead the military-to-military discussions. Dunford said he and U.S. Defense Secretary Jim Mattis would also contribute to that dialogue.

“I’m not going to talk about the relationship in public because I’m committed to try to improve the relationship and I do believe that the military-to-military dialogue led by General Votel, with occasional reinforcement from Secretary Mattis, myself and others, is the right approach,” Dunford said.