両者の利害の調整を図りつつ、国際的視野に立った人口政策を考えていかなければならない。

、。

While balancing the interests of both parties, we must consider population policy from an international perspective.

Literal

Both-parties [possessive-の] interests [possessive-の] adjustment [object-を] seek-while, international perspective [in-に] stood population-policy [object-を] must-think-going.

~つつ (while doing) is a formal/literary version of ~ながら. 図る (to seek/plan) is a formal verb. 国際的視野に立つ (to stand on an international perspective) and 考えていかなければならない (must go on thinking about) use ~ていく for continuation into the future. Dense, formal policy language.