from the article, Polland wants us there, all of the EU wants us there...
Soldiers in camouflage with tanks and other vehicles crossed into southwestern Poland on Thursday morning from Germany and headed for Zagan, their planned base. Poland's prime minister and defense minister said they would attend official ceremonies Saturday celebrating the Americans' arrival.
The deployment "symbolizes a turn in our efforts on this front, and is an important part of our continued effort to deter Russian aggression and maintain a free Europe," U.S. European Command spokeswoman Meghan Henderson responded.
U.S. and other Western nations have carried out exercises on NATO's eastern flank, but this deployment -- which includes around 3,500 U.S. troops -- marks the first-ever continuous deployment to the region by a NATO ally. It represents a commitment by President Barack Obama to protect a region that became deeply nervous when Russia stormed Ukraine and took over Crimea in 2014, and then began backing rebels in Ukraine's east.