The red line that is next to the red line over NATO expansion into former Warsaw Pact member states and NATO’s war against Yugoslavia in 1999.
And the red line over the U.S. and NATO taking over bases in the territory of Russia’s Collective Security Treaty Organization allies Kyrgyzstan and Tajikistan after the invasion of Afghanistan in 2001.
And the red line over the U.S. and its NATO allies invading Iraq in 2003.
And the red line over the U.S.-orchestrated “Rose Revolution” in Georgia in 2003.
And the red line over the U.S.’s Georgian client Mikheil Saakashvili moving troops and tanks to Adjara and chasing Russian peacekeepers out in 2004.
And the red line over NATO expansion into former Soviet territory in 2004.
And the red line over the U.S.-engineered “Orange Revolution” in Ukraine in 2004-2005.
And the red line over the U.S.-led Tulip Revolution coup in Kyrgyzstan in 2005.
And the red line over the Pentagon and NATO acquiring no fewer than eight air force and other military bases in Romania and Bulgaria in 2005 and 2006.
And the red line over the U.S. flying over 2,000 Georgia troops from Iraq home for the war with Russia in 2008.
And the red line over the U.S. announcing in 2009 it would station Standard Missile-3 interceptors in Romania and Poland.
And the red line over the U.S. deploying Patriot Advanced Capability-3 interceptor missiles to Poland in 2010, 64 kilometers from the Russian border.
And the red line over the U.S. and NATO extending UNSC Resolution 1973, which Russia didn’t oppose, to bomb Libya for seven and a half months in 2011.
And the red line over the American government deploying John McCain and Victoria Nuland to Kiev to agitate for the deadly uprising and coup in Ukraine in 2014.
And the red line over the U.S. and NATO arming and training the armed forces of the resultant junta to wage war in the Donbass on Russia’s border and in the process kill Russia civilians on their own soil.
And the red line over NATO permanent Enhanced Forward Presence military deployments to Estonia, Latvia, Lithuania and Poland in 2014.
And the red line over the U.S. moving troops and armored vehicles into the same four nations in the same year under Operation Atlantic Resolve.
And the red line over the U.S. bombing and invading Syria starting in 2015.
Red lines ad infinitum. Moscow must be running out of chalk.

I’m sure bored employees at the White House, State Department, Pentagon and NATO Headquarters have devised a game to tabulate how many times leading Russian officials employ the words red line. And chuckle.

Plans for US air defense in Ukraine is Russia’s ‘red line’ — Duma committee chief
Vladimir Shamanov pointed out that Russia should reserve the right to take retaliatory steps in case these plans materialized

“The Americans’ intention to deploy US air defense weapons in Ukraine is an unequivocally red line for Russia. We should reserve the right to take corresponding retaliatory measures to ensure this component should by no means be available to the irresponsible leaders of our neighbors,” Shamanov said. “We cannot afford to let them have such weapons.”