There was no immediate sign that Israel was poised to enter Lebanon and the US Pentagon said on Wednesday it did not appear "imminent".But the IDF chief of staff's remarks were published shortly after the IDF called up two reserve brigades for "operational missions in the northern arena".When a BBC team visited an Israeli border town on Wednesday, the army said that Hezbollah fighters must move well back from the border, to positions north of the Litani River, as demanded by a UN resolution passed in 2006.Israel's allies, including the US, have said they are working to avoid all-out war...