ATHENS/BRUSSELS (Reuters) – Greece is expected to ask on Thursday for an extension to its “loan agreement” with the euro zone as it faces running out of cash within weeks, but it must overcome resistance from skeptical partners led by Germany. With Greece’s bailout program due to expire in little more than a week, the government of leftist Prime Minister Alexis Tsipras urgently needs to secure a financial lifeline to keep the country afloat beyond late next month.