On Tuesday, he met with his Portuguese counterpart Augusto Santos Silva during his visit to Portugal.
"The EU needs to speak in one voice in its ties with China. This way we will be able to better defend our common interests, therefore, the ES 27+1 format is the best way for cooperation with China," Landsbergis was quoted as saying in a statement released by the Foreign Ministry.
The two ministers discussed Lithuanian-Portuguese cooperation, EU relations with Belarus, Russia and China and the EU's role in Africa. The ministers also stressed the importance of the EU's bigger role in the Indian and Pacific region.
Speaking about the EU's migration policy and the illegal migration-related situation in Lithuania, Landsbergis underlined the need to adapt the EU legal base for such cases Lithuania is facing amid Belarus' hybrid attack.
The Lithuanian minister also thanked Portugal for its contributing to bolstering security in Lithuania and the whole region as Portuguese pilots are leading the NATO air policing mission in Lithuania for a fifth time already.