Dense formal/news register with nested purpose and modifier clauses. ~ために expresses purpose ('in order to'). ~ていく marks a continuing, outward-projecting change — here 'go on strengthening' rather than just 'strengthen.' 重要性 'importance' uses the ~性 suffix for '-ness' abstract nouns, a productive pattern with Sino-Japanese roots (可能性 'possibility,' 重要性 'importance,' 必要性 'necessity'). The whole sentence is structured as [long noun phrase] を確認した, typical of news summaries.