Ace, when used in the context of military propaganda, denotes a successful military professional who has accumulated a meaningfully measurable statistic such as aircraft shot down, tonnage sunk, or a number of successful sniper shots. In a manner analogous to sport statistics, some military roles can be measured in terms of a quantifiable metric. Once said metric is established, military personnel (whether within the same force, in different forces, or in different eras) may be quantified versus the designated metric and compared in a tabular fashion. Such metrics may be used as a basis for military merit awards, such as Knight's Cross of the Iron Cross by setting an arbitrary threshold. Likewise, a designation of "ace" ("double ace", "triple ace", etc.) may be applied, such as 5 aircraft