MOGADISHU, Somalia — Somalia announced on Wednesday a defense deal with Turkey that includes support for the Horn of Africa nation’s sea assets and appears aimed at deterring Ethiopia’s efforts to secure access to the sea by way of the breakaway region of Somaliland. Ethiopia signed a memorandum of understanding with Somaliland on Jan. 1. The document has rattled Somalia, which said it’s prepared to go to war over it because it considers Somaliland part of its territory. Somaliland says