By Brian O’Connell With geopolitical tensions on the rise, defense stocks and agriculture companies are in focus. As Russia’s invasion of Ukraine continues to roil global markets here’s a look at several “stocks of the week” TheStreet.com and Real Money experts are tracking. Cresud $8.99. 5-day performance 35.31%.Shares of Argentine farming and land name Cresud (CRESY) – Get Cresud SA Report have been on a tear in recent days and weeks notes Real Money’s Jonathan Heller. “The company’s recent earnings release certainly helped, but in addition, markets may be re-valuing some of the potentially …