This may be a big war play concerned with foreign affairs and national politics, but there's also a whole lot of family drama in Henry V. After all, both the English and French crowns are supposed to be inherited by lineal succession. (Lineal succession is a fancy way of saying that sons are supposed to inherit the throne from their dads.) It makes a lot of sense that the play is obsessed with all types of things that get passed down from fathers to sons – from entire kingdoms to character traits (like bravery and valor). In some cases, sons even inherit the burdens of their fathers' sins. Shakespeare also shows us how fragile family ties can be. During times of war, parents mourn for their lost sons, children are made into orphans, and wives are turned to grieving widows.
Although the play portrays Henry's wooing of Catherine as a romantic occasion, the couples' marriage is nothing more than a political alliance brokered between two kings.
Henry V suggests that war has long-lasting and devastating consequences for the families of soldiers.