427 congressmen supported the resolution, one opposed.

In early March, the Foreign Affairs Committee unanimously approved the document.

The initiative is called the “Law on the non-recognition of the annexation of the Crimea.” It says that Washington’s policy is “not to recognize the claims of the Russian Federation to sovereignty over the Crimea, its airspace or territorial waters”.

Crimea became the Russian region after the referendum held there in March 2014, in which the majority of the inhabitants of the peninsula called for reunification with Russia.