First such contact since NATO suspended dialogue with Russia in 2014 after Crimea's annexation
Russia says the time when the West called the shots was over while Nato was a relic of the Cold War
To spend at least 2% of their GDP on defence
He also sought to reassure allies about President Donald Trump's commitment to the alliance
Trump accepted Merkel's invitation to attend the G20 Summit of developed and emerging countries
Hearkening back to language not employed in the United States since the 1930s
Trump has often indicated that as President he might not be committed to NATO
The US President-elect, while pitching for abandoning America's NATO commitments, had called the alliance "obsolete"
Earlier this month, Sweden announced it was remilitarising its biggest island, Gotland
NATO will hold fresh talks with Russia on July 13 in Brussels just days after the landmark alliance summit
Some of the allies however, especially France and Germany, have called for NATO to avoid a Cold-War style stand-off with Russia
US President Barack Obama announced his decision to send an additional 1,000 US troops to Poland as part of NATO efforts
Most of the NATO troops in Afghanistan are working as advisors to local Afghan security forces
Britain as a nuclear power with a permanent, veto-wielding seat on the UN Security Council has a major say in NATO
NATO announced that it would deploy four battalions to the Baltic nations and Poland to counter a more assertive Russia
US Under Secretary of State Rose Gottemoeller would be the next deputy secretary-general of NATO
He expressed his condolences on the recent terrorist attacks in Tel Aviv, which killed at least four Israelis
10-day exercises are intended to shore up security on the alliance's eastern flank
Exercises are NATO's biggest since Trident drills last year involving 36,000 troops in Italy, Spain and Portugal
The headquarters will become fully operational by 2018 with some 280 officers, including 75 from other NATO states