Geopolitical tensions are spooking stock futures (ES=F, NQ=F, YM=F) Tuesday morning after President Biden authorized a Ukrainian airstrike on Russia.

Walmart (WMT) raised its full-year outlook after topping its third quarter earnings estimates, which saw same-store sales grow by 5.5%. Also reporting earnings, home improvement retailer Lowe's (LOW) may have beat estimates, but the stock is dipping in pre-market trading on the company's slowing sales growth.

Department of Justice officials are set to ask a federal judge to push for Alphabet's Google (GOOG, GOOGL) to sell its Chrome browser, according to Bloomberg.

To watch more expert insights and analysis on the latest market action, check out more Morning Brief here.

This post was written by Luke Carberry Mogan.