In just one generation

"Let the word go forth from this time and place, to friend and foe alike, that the torch has been passed to a new generation of Americans—born in this century, tempered by war, disciplined by a hard and bitter peace, proud of our ancient heritage—and unwilling to witness or permit the slow undoing of those human rights to which this Nation has always been committed, and to which we are committed today at home and around the world.
Let every nation know, whether it wishes us well or ill, that we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe, in order to assure the survival and the success of liberty." John F. Kennedy-Inaugural Address, Jan 20, 1961

President Barack Obama’s administration said earlier this month it would invite Iran to US embassy barbecues for the national holiday for the first time since the two nations severed relations following the 1979 Islamic revolution.
“There’s no thought to rescinding the invitations to Iranian diplomats,” State Department spokesman Ian Kelly told reporters.
“We have made a strategic decision to engage on a number of fronts with Iran,” Kelly said. “We tried many years of isolation, and we’re pursuing a different path now.”