Reuters reports that President Trump will host leaders of Armenia and Azerbaijan in the White House tomorrow to sign an agreement which will give the United States exclusive development rights to the Zangezur corridor.

This is a part of a larger geopolitical deal. The United States is increasing its influence in the Central Asia, South Caucasus, Turkey region.

There are reports that the corridor will be named "Trump’s Roadmap for International Peace and Prosperity" (TRIPP).

Goods and infrastructure investments, not weapons and soldiers, will flow along the corridor. This will bring stability to the region and will weaken Russia's influence there.

Note that during negotiations about Zangezur corridor, Russia has launched a strike on Ukrainian Orlivka gas compression station, through which Azerbaijan gas supplies began recently. That was a clear signal from Putin to President Aliyev that Russia might escalate its aggression against Azerbaijan.

Russian attacks are covert; Russia prefers the "thousand cuts" tactic. It's not hard to assume that Russia will attempt to disrupt the normal functioning of the corridor.

Obviously, Russia is not happy about a stable peace in the South Caucasus.
Russia will make efforts to destabilize the region. It doesn't have the resources for a new war in the Caucaus but it is definitely able to cause harm.
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