President Trump put forward on Monday a long-awaited strategy for resolving the nearly 16-year-old conflict in Afghanistan, but he failed to specify either the number of troops that would be committed, or the conditions by which he would judge the success of their mission there.
In a nationally televised prime-time speech to troops at Fort Myer, Va., Mr. Trump said there would be no “blank check” for the American presence in Afghanistan. But in announcing his plan, Mr. Trump embraced deepened American involvement in a military mission that has bedeviled his predecessors and that he once called futile.
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