Sentence:  On 28 February, for example, a US Navy ship <WSD>docked</WSD> in Nampo, the port for Pyongyang, with equipment for joint searches for remains of US soldiers missing from the 1950-1953 Korean War. China may look askance at the US and North Korean militaries working together like this. 
Meaning of the word marked with <WSD> tags:  To land at a harbour.