The previous answer lists hardware components supplied by the Russians to the ISS. I would like to add some experience and knowledge to that. The USA's experience was limited to Skylab space stations, with only 3 expeditions, consisting of a single module.

Russians have experience in

• Life support systems, which work for many years
• Emergency systems (fire, collisions, meteorites), which are in service for years and emergency situations handling
• Logistics of station supply by cargo ships
• etc.

The previous answer lists hardware components supplied by the Russians to the ISS. I would like to add the experience and knowledge that Russia brought to the project. The USA's experience was limited to Skylab space stations, with only 3 expeditions, consisting of a single module.

Russians have experience in:

• Life support systems, which work for many years
• Emergency systems (fire, collisions, meteorites), which are in service for years and emergency situations handling
• Logistics of station supply by cargo ships
• etc.

Previous answer lists hardware component supplied by Russians to ISS. I would like to add here experience and knowledge. USA experience of space stations was Skylab only, with 3 expeditions only, consisted of single module.

Russians have experience of

• Life support systems, which works for many years
• Emergency systems (fire, collisions, meteorites), which are in service for years and emergency situations handling
• Logistics of station supply by cargo ships
• etc

The previous answer lists hardware components supplied by the Russians to the ISS. I would like to add some experience and knowledge to that. The USA's experience was limited to Skylab space stations, with only 3 expeditions, consisting of a single module.

Russians have experience in

• Life support systems, which work for many years
• Emergency systems (fire, collisions, meteorites), which are in service for years and emergency situations handling
• Logistics of station supply by cargo ships
• etc.