The Dutch are set to give Ukraine more than a dozen F-16s out of its aging stockpile.JOHN THYS/AFP via Getty ImagesAn unnamed Ukrainian officer told Politico of his doubts about the usefulness of incoming F-16s.He said that Russia has already been preparing the battlefield for the NATO aircraft by range-finding.It's an example of how Ukraine often receives weapons systems too late, he told Politico.Ukraine's long-awaited F-16s are an example of weapons systems that are "no longer relevant" once they end up in Kyiv's hands, a senior Ukrainian officer told Politico.Russia has already learned how to counter F-16s in a way that would minimize their battlefield potential, said the unnamed officer, who, per Politico, worked under former Ukraine armed forces head Valery Zaluzhny.In an article published on Wednesday, Politico's opinion editor Jamie Dettmer wrote that the outlet spoke to several top officers under the condition of anonymity.One of Dettmer's sources was this officer, who lamented about the F-16s and said they were arriving too late to make a difference."Every weapon has its own right time.