The Euro has registered some very impressive gains against the US dollar this week, adding nearly 5% in just the past two days. The pair is now re-testing the multi-year bullish trend line that had guided price action since 2002 and was broken to the downside at the beginning of October. This is the proverbial line in the sand: if the Euro manages to surpass this juncture, the bearish bias will be violated. However, the possibility remains that current EURUSD strength is corrective and the downtrend will resume following the re-test of support-turned-resistance.
EURUSD Spot (Weekly):

Created using FX Trek IntelliChart - Prepared by Ilya Spivak