that is tatjana greil castro from muzinich.s get to the first word news with annabelle droulers. hi. >> president biden says the u.s. is on track to end its military mission in afghanistan by august 31, even as the taliban made gains amid the withdrawal. biden reflected on america's longest work which will and just before the 20th anniversary of the 9/11 terror attacks. others in the region must step up their efforts. pres. biden: u.s. support for the people of afghanistan will endure. we will continue to provide civilian and humanitarian assistance, including speaking out for the rights of women and girls. >> pfizer says it will request u.s. emergency authorization in august for a third used her dose of its covid-19 vaccine. the move comes after early data shows that it can sharply increase immune protection against the coronavirus. the company has received initial data from an early human study showing that a third dose of this existing vaccine is safe and can raise antibody levels by 5 to 10 fold compared with the original v