Navy Adm. James G. Stavridis, NATO's top military commander, says the expectation of having more than 350,000 Afghan security force members in service by summer puts the turnover ahead of schedule. (Associated Press)

Navy Adm. James G. Stavridis, NATO's top military commander, says the expectation of having more than 350,000 Afghan security force members in service by summer puts the turnover ahead of schedule. (Associated Press)