The yield on Germany’s 30-year bonds rose to 3.55%, marking its highest level since mid-2011, as investors demanded higher returns amid a surge in government debt issuance. Germany aims to raise €512 billion this year to fund infrastructure upgrades and strengthen defense spending, while facing stiff competition from other European borrowers. Investor demand for German debt remained solid, with January’s new 20-year bond attracting near-record orders, and conventional two-, 10-, and 30-year bonds also seeing improved interest. Several other euro area countries recorded record demand for their bonds last month. Investors also turned their attention to the upcoming European Central Bank meeting, where policymakers are expected to leave monetary policy unchanged while assessing the deflationary impact of a stronger euro.