An expansion can be five-fold.Logical formLearned from15 sentences. An expansion can be sustainable.Logical formLearned from15 sentences. A (military presence) may undergo an expansion.Logical formLearned from15 sentences. An urban area may undergo an expansion.Logical formLearned from15 sentences. An (expansion process) may pertain-to an international-political-entity.Logical formLearned from15 sentences. (Defense cooperation) may undergo an expansion.Logical formLearned from15 sentences. A (radar program) may undergo an expansion.Logical formLearned from15 sentences. A military-or-other-action-organization may approve an expansion of a (radar program) on a month.Logical formLearned from15 sentences. An expansion can be underway.Logical formLearned from15 sentences. Society may undergo an expansion.Logical formLearned from15 sentences. A brain may undergo an expansion.Logical formLearned from15 sentences. A male may sign with an expansion.Logical formLearned from15 sentences. A (tram network) may undergo an expansion.Logical formLearned from15 sentences. An expansion can be to date.Logical formLearned from15 sentences. A programming may undergo an expansion.Logical formLearned from15 sentences.