shis warrying may rise to or exacerbate tensions not between countries of origin and of destination but also between of origin and countries
This phenomenon is particularly worrying because it may give rise to or exacerbate tensions, not only between countries of origin and countries of destination, but also between countries of origin and transit countries.
This is worrying may rise to or exacerbate tensions, not between countries of origin and of destination, but also between of origin and countries.