RIVNE, Feb 16 - President Volodymyr Zelenskiy and military observers from NATO member states including Britain and Poland looked on as the country's armed forces carried out drills in western Ukraine on Wednesday, Reuters reported.

Tanks fired shells and drove across bumpy fields while soldiers trained with Javelin anti-tank missiles near the city of Rivne.

The drills, part of the Zametil 2022 (Blizzard 2022) exercises, were carried out as Ukraine prepared for a possible military attack from Russia, which has massed more than 100,000 troops near Ukraine's borders.