BORISOVSKY TRAINING GROUND, Belarus and LONDON -- Russia put on a display of firepower as part of its major military exercises in Belarus on Monday, with neighboring NATO nations on alert amid some of the highest tensions in Europe since Moscow began its full-scale invasion of Ukraine in February 2022.

US president said he is ready to impose further sanctions on Russia, but only if all NATO countries stop buying Russian oil, a huge source of income for Putin.

NATO projects that all member countries will meet the 2% GDP defense spending target in 2025, while nearly all member countries agreed to a new 5% of GDP goal by 2035.

A NATO boss has issued a horrifying warning as its told Russia ‘could strike London’. Fears of World War Three have been intensifying recently as the organisation was warned Vladimir Putin might target a major Western European city next.

Amid rising tensions between NATO and Russia, Moscow and Belarus are holding military exercises starting on Friday that include "planning the use of nuclear weapons" and testing ballistic missiles, the state-run Tass news agency reported.

Poland triggered Article 4 following the incident last week, with allies believing the action was intentional and a test of NATO's defences.