1a record number of people were forced to move within their own countries译句是：一个创纪录数量的人被迫离开本国可是within不是在之内的意思吗?我理解成一个创纪录数量的人被迫在自己的国家内迁移?怎么

1a record number of people were forced to move within their own countries
译句是：一个创纪录数量的人被迫离开本国
可是within不是在之内的意思吗?
我理解成一个创纪录数量的人被迫在自己的国家内迁移?怎么回事
2The number of people displaced within their own countries by armed conflict,other violence and rights violations almost reached 29 million in 2012
同样是这里的within,整个within their own countries在此句作什么用法,

1 我认为 意思 应该是 一个创纪录数量的国内人被迫 流离失所
within their own countries可以 看做 分隔式 定语 修饰 people
2 displaced within their own countries是过去分词短语 作定语 修饰 people
其中 within their own countries可以看做 过去分词 的状语
在自己的国境内流离失所的人数