If a president believes that emergency conditions require a quick decision regarding an agreement with another country, which tool allows him to make a decision without senate approval?

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

the spanish  

hope this meaning spain btw