Half a century after the end of America's attempt to stop South Vietnam falling to the communist regime in the north, there are celebrations of national pride and victory against the odds - but many in the country will be hoping its now good relationship with the US can endure.

The Vietnam War that ended after the fall of Saigon 50 years ago greatly impacted U.S. society. For some Americans, it still shapes their lives today.

Scholars, activists, and the public still argue about the Vietnam War, including over American motivations to intervene, the viability of the South Vietnamese government, and if t