The FTSE 100 opened 0.5% higher at 9,396.84, driven by a rebound in banking stocks and optimism over US-China trade talks.
European defence names followed suit, with Rheinmetall in Frankfurt climbing 4.4%, Leonardo in Milan up 3.2%, and Safran in Paris rising 2.1%.
Investor sentiment was buoyed by reports that the US and China will hold another round of trade talks this week.
Author's summary: FTSE 100 rises on banking rebound and trade hopes.