(a) Penetration of the metal jet; (b) propagation of the ballistic wave and shock wave; (c) bubble pulsation. The time t (in milliseconds) is labeled in the bottom right corner, which corresponds to ...

Ukraine’s security service, the SBU, said on Tuesday that it had hit the bridge connecting Russia and the occupied Crimean Peninsula with explosives planted underwater.Watch video of the explosion in ...

Ukraine has opened a new chapter in naval warfare, claiming to have crippled a high‑value Russian submarine with an explosive underwater drone in the Black Sea. The strike, which Kyiv describes as the ...