Russia’s Putin and China’s Xi have red lines, too

What are Vladimir Putin and Xi Jinping up to?

In recent days, Russian tanks, artillery, armor, trucks and troops have been moving by road and rail ever closer to Ukraine, and Moscow is said to be repositioning its 56th Guards Air Assault Brigade in Crimea.

Military sources in Kyiv estimate there are now 85,000 Russian troops between six and 25 miles from Ukraine’s northern and eastern borders.

“I have real concerns about Russia’s actions on the borders of Ukraine. There are more Russian forces massed on those borders than at any time since 2014 when Russia first invaded,” said Secretary of State Antony Blinken on Sunday’s “Meet the Press.” Blinken added this warning:

“President Biden’s been very clear about this. If Russia acts recklessly, or aggressively, there will be costs, there will be consequences.”

What “costs” and what “consequences” were left unstated.

Earlier, Biden personally assured President Volodymyr Zelensky of America’s “unwavering support for Ukraine’s sovereignty and territorial integrity in the face of Russia’s ongoing aggression in the Donbass and Crimea.”

What does that mean? When Putin was a young KGB officer, the Black Sea was a virtual Soviet lake, dominated in the west by Warsaw Pact members Bulgaria and Romania, and on the north and east by the USSR. Turkey occupied the south bank.

Today, three of the six countries that front on the Black Sea — Bulgaria, Romania and Turkey — are NATO members. Two of the others, Ukraine and Georgia, openly aspire to become members of NATO.

The transparency of the Russian military buildup suggests that it is more of a message to the U.S. and NATO than any preparation for an invasion.

Putin seems to be saying: Ukraine’s admission to NATO or a stationing of U.S. or NATO forces in that country would cross a red line for Russia. And we will not rule out military action to prevent or counter it.

The record suggests that Putin is not bluffing.

When it comes to Ukraine, Russia has demonstrated that it has its own red lines, which it will back up with military action.

A similar test is taking place in the South and East China seas.

Since Biden’s presidency began, China has been sending military aircraft, fighters and bombers, into Taiwanese air space, circumnavigating the island with warships, and openly warning that any declaration of independence by Taipei would mean war with Beijing.

Thus, Russia has made clear what it would fight to prevent — Ukraine’s accession to NATO and NATO troops on its soil. And China has made clear what its red line is, what it would fight to prevent — the declared independence of Taiwan.

But U.S. policy in both cases seems to be one of “strategic ambiguity,” leaving the issue open as to what we would do.

A question arises: Are Putin’s Russia and Xi’s China, with their advantages of geographic proximity, threatening military action to jointly test the resolve of the Biden administration, and colluding to do so — one in Ukraine, the other in the South and East China Seas?

And, should we fight for Ukraine, how many NATO allies would be there beside us? And should we fight to keep Taiwan free, how many Asian allies would fight China alongside us?

Recent actions by Putin and Xi make the questions no longer academic.