International Leaders Gather/Convene/Assemble Amidst Heightening/Mounting/Escalating Tensions
Tensions are running/run high/remain at a boiling point as top/world/global leaders from around the globe converge/assemble/meet in the/a/an highly anticipated/sensitive/crucial summit. The meeting comes at a critical/fragile/delicate juncture, with several/numerous/various pressing/urgent/significant issues at hand/on the table/requiring immediate