Acting Pentagon chief Patrick Shanahan arrives in Afghanistan

Acting Pentagon chief Patrick Shanahan arrived in Afghanistan on an unannounced visit Monday as the United States leads a push for peace talks with the Taliban.Shanahan will meet President Ashraf Ghani, who has warned against rushing into a deal after Washington held major talks with Taliban officials in Qatar last month that negotiators hope could herald a breakthrough in the grinding 17-year conflict.US President Donald Trump is pushing to end US involvement in Afghanistan, where 14,000 Americ