"Europe would thus be the sole guardian of international law, which Russia has long abandoned and which the United States has also clearly disregarded," says international relations expert Bertrand Badie on the eve of a crucial summit of key European leaders in London, following the Trump-Zelensky clash in the White House. He also advocates for a pooling of forces, including in the nuclear field, provided that Europe can overcome its internal divisions. IMAGES AND SOUNDBITES