Would Romania and Rep. Moldova unification force NATO to confront Russia army in Transnistria?

Romania and the Republic of Moldova wish to unite, sharing the same language, religion, culture, and history, and maintaining strong kinship ties at both the family and societal levels.

However, Moldova has been under Russian occupation since 1991. It was the first country invaded by Russia following the collapse of the USSR; consequently, the Romanian nation (since Moldovans are Romanians) was the first to suffer—and continues to suffer—Russian aggression through military occupation in the Transnistria region. Although part of the Republic of Moldova, this region has unilaterally declared independence—a status recognized by *no one* in the world.

If Romania and Moldova were to unite, Moldova would automatically enter the EU and NATO, bypassing all standard accession, reform, and integration procedures for both organizations.
Subsequently, NATO would be compelled to move its troops to the edge of the new border.

This gives rise to a complex question: to which border would NATO move? Since Transnistria is not recognized by the UN, it has no right to exist as an independent state; therefore, NATO would have to move in and confront the Russian army stationed in the region.
If NATO failed to move its troops and instead halted before the Russian army in Transnistria, it would constitute a grave violation of Romania's new national sovereignty by both the EU and NATO.

Protocols dictate that a state joining the EU and NATO must possess clearly defined borders.
However, existing treaties contain no provisions regarding the unification of two states where one faces issues concerning its borders.

Why is this scenario not being discussed?

Would Romania and Rep. Moldova unification force NATO to confront Russia army in Transnistria?
Would Romania and Rep. Moldova unification force NATO to confront Russia army in Transnistria?
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