Pakistani president Zardari invited to NATO summit Asif Ali Zardari (shown in March, 2008 file photo), became Pakistan's president on September 6, 2008. UPI Photo/Sajjad Ali Qureshi/Files ISLAMABAD, Pakistan, May 15 (UPI) -- Pakistani President Ali Zardari has been invited to the NATO summit in Chicago, a Foreign Office spokesman confirmed Tuesday. The summit, to be held Sunday and Monday, will include discussion of NATO's post-2014 role in Afghanistan, and the invitation comes a week after NATO Secretary-General Andres Rasmussen urged Pakistan to reopen a supply route to Afghanistan closed after an attack on a checkpoint in which 24 Pakistani soldiers were killed, Geo News reported. The invitation is under consideration, the spokesman said.