MOSCOW, February 24. /TASS/. Russia's opponent understands the harmful consequences of using a nuclear component, President Vladimir Putin said at a board of the Federal Security Service (FSB).

He also said that Russia has promising defense and civilian developments, and some of them have not yet been publicly presented.

TASS has compiled the key statements of the head of state.

The FSB makes "an essential and significant contribution" to ensuring Russia's sovereignty and security.

The FSB must show utmost concentration in the current international situation: "Today, the international situation is difficult - conflicts in some regions of the world have escalated sharply. Conducting the special military operation requires maximum concentration from the staff of the Federal Security Service."