Since our laws and regulations are different, I would imagine that you will be required to attend an accredited CDL school so as to be trained in our regulations.
I moved here from the UK 10 years ago.
You will need to first get a work visa, or other way to legally enter the US.
Then you will need to obtain a US Drivers Licence.
Then you will need to obtain a US Commercial Drivers Licence.
Your experiance in Europe means nothing out here, but it will make life easier for you as you understand how a truck moves n backs.