President Donald Trump’s speech Monday night on Afghanistan and our long involvement in that country’s war made it clear that our commitment still is strong to defeat the Taliban and the Islamic State extremist group.

Additional U.S. troops will be sent to Afghanistan to train that country’s armed forces, but he did not say how many. Published reports say 4,000 additional troops will be deployed. Part of the Trump strategy will be to take a tougher stance toward Pakistan, that is, to support American priorities.

President Trump said the U.S. will not continue a policy of “nation building,” which has been a failure. He promised that the U.S. will win the war against the extremist groups.

From America’s leadership down to the guy on the street, people are weary of our long involvement in Afghanistan, which began after 9/11. Under President Obama we had as many as 100,000 troops in that country and we still did not win. In the president’s new strategy, he said we won’t give Afghanistan a blank check in our support.

The question is, is it possible to win in Afghanistan?