The Russian armed forces are the unquestioned second strongest military power in the world. Russia has the world's largest tank fleet, the second largest aircraft fleet behind the US, and the third largest submarine fleet behind the US and China.
Proton therapy is an advanced type of radiation treatment that uses a beam of protons to deliver radiation directly to the tumor, destroying cancer cells while sparing healthy tissues. Protons enter the body with a low radiation dose, stop at the tumor, match its shape and volume or depth, and deposit the bulk of their cancer-fighting energy right at the tumor.
1 According to other sources such as wikipedia.org, proton therapy is very expensive compared to other forms of cancer treatment. 2  A proton facility costs as much as $200 million to construct.