Secretary of Defense James Mattis James Norman MattisBiden courts veterans amid fallout from Trump military controversies Trump says he wanted to take out Syria's Assad but Mattis opposed it Gary Cohn: 'I haven't made up my mind' on vote for president in November MORE on Monday called for the international community to help end the war in Afghanistan and aid regional leaders in their efforts to bridge longstanding disagreements, saying that conflicts in Afghanistan have now gone on for “40 years.”

“In Afghanistan, it’s gone on now it’s approaching 40 years; 40 years is enough, and it’s time for everyone to get on board, support the United Nations, support [Indian] Prime Minister Modi, support [Afghan] President Ghani and all those who are trying to maintain peace and make for a better world here. So, we are on that track,” Mattis told reporters ahead of a meeting with his Indian counterpart, Nirmala Sitharaman.

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The U.S. has had a military presence in Afghanistan for 17 years, since 2001, when it removed the Taliban government from power, but Afghanistan has been in conflict since the late 1970s when U.S.-backed Afghan guerrillas repelled the Soviet Union from the country in a nine-year war.

Since the U.S. has had a presence, however, troops have been bogged down in an insurgency waged by the Taliban and other armed groups.

Mattis noted that the U.S. is currently concerned over the influence of Pakistan-based armed groups that have clashed with U.S. troops in Afghanistan.

“The presence of U.S. troops in Afghanistan has also heightened U.S. sensitivity to the rivalry between nuclear-armed India and Pakistan. Washington and New Delhi share concerns over Pakistan-based anti-Western and anti-Indian Islamist militant groups,” he said, according to the Afghan media outlet Tolo News.