As the severity of the ongoing dispute escalates/increases/worsens, global tensions are soaring new peaks. Diplomatic efforts appear/seem/remain fruitless as countries/nations/states take sides/align themselves/engage in the growing/expanding/escalating conflict. Fears/Concerns/Worries are mounting that/about/of a wider/broader/larger war/conflict/

Tensions around/between/among the world are rapidly escalating/intensifying/heightening. Efforts/Negotiations/Talks aimed at resolving/mitigating/de-escalating these conflicts have stumbled/faltered/failed, leading/resulting/contributing to a/growing/increasing sense of uncertainty/anxiety/fear on the global stage. Many/Several/A number of nations