Minnesota Gov. Tim Walz and Ohio Sen. JD Vance are set to face off in their only scheduled vice-presidential debate next week.

Walz and Vance's military histories will likely come up during the debate. Their similarities, though, don't stop at their willingness to serve. Both candidates enlisted as teenagers, used G.I. bills to attend college and neither saw combat.

Given how tight this year's election has become, experts say it might be most consequential vice presidential debate in recent U.S. history.