what does "that strength" mean?
The right-wing notion "that this nation is headed for defeat through deficit, or that strength is but a matter of slogans,"

Question

what does "that strength" mean? 
The right-wing notion "that this nation is headed for defeat through deficit, or that strength is but a matter of slogans,"

Answer

句意应该是，右派说："国家必须要采取措施解决财政赤字问题，不然，再强大的国力只是口号，摆设。"
所以我觉得，that strength应该指的是国力吧。
没有上下文，我也不敢确定。
如果说的不对，而又正确答案的话，请评论下我吧，让我也知道正确答案，谢谢啊！